Indicators will be secure in the GUSHI concrete diamond blades transition layer is equal to the substrate adjacent to the Department of the diamond layer

Indicators will be secure in the transition layer is equal to the substrate adjacent to the Department of the diamond layer . Our base for the abrasive layer convergence , and in the use with flange firmlyabrasive grinding wheels held on the grinding machine spindle. Suri outside environment as more rounded shape . There is not a diamond wheel diamond production from. It may be divided into three layers , i.e. task layer , substrate buffer layer . As long as the task layer is called the diamond layer , the abrasive agent and filler compact form seems like a diamond determines its inability to do4 inch saw blades tough . The buffer layer and the substrate are non-diamond layer . Even as a diamond wheel roots sand arrived with its most empty thinking is to see the consistent use of abrasive materials . Its primary organs are made of metal powder, resin powder , ceramic and metal plating as liaison agent. How the diamond wheel three disjointed comprehensive alone. If the corporate team as it tastes good Qianan three choices of diamond grinding wheel diamond place.

Diamond grinding machine defect inspection

To our knowledge diamond grinder before installation must undergo a rigorous inspection , cracks and other defects in the diamond grinding machine is definitely not allowed to install and use . Please read on.
( 1 ) diamond grinding machine tag checks. Diamond grinder no markings or unclear, unable to verify , confirm the characteristics of a diamond diamond grinding machine grinding machine , regardless of whether there is defective , are not available ; ( 2 ) diamond grinding machine defect inspection . Its inspection methods are visual and carbide saw blades  sound checks : ① direct visual inspection with the naked eye or with other appliances inspect the diamond surface grinder for cracks or damage and other defects ;
② sound check , also known as percussion test , mainly for internal defects in diamond grinders , inspection method is to use small wooden hammer percussion diamond grinder . Normal diamond grinders crisp sound, sound dull , hoarse , indicating that there are problems ; ( 3 ) the strength of diamond rotary grinder test. The same number of diamond grinding machine models should be turning intensity random testing without strength test batch of diamond grinding machine installation is prohibited .
How to make a diamond diamond grinding wheel wear slower in our daily lives has become so widespread , that how can you slow diamond grinding wheel wear often , you know? If you do not know to  metal grinding wheel give with Xiaobian look at it .
Select the diamond grinding wheel hardness general principle is : the processing of soft metal , in order not to make premature loss of abrasive , then use a hard wheel. Wear resistance and long life . Diamond grinding wheel ratio up to 3500-5500 , a hundred times higher than normal corundum grinding wheel , 3-5 times higher than ordinary diamond wheel . When processing hard metal , in order to make timely blunt grit off, thereby exposing new abrasive grains with sharp edges ( ie, self-sharpening ) , use a soft wheel. Or because the soft material in the grinding wheel abrasive wear is slow work , without departing too early ; latter is because the grinding of hard materials , abrasive wear of the grinding wheel work faster, require faster updated. High  tile cutting blades efficiency, good overall economic efficiency . Grinding sharp, small grinding force , diamond grinding wheel dressing cycle length , less the amount of dressing , long replacement time ; long life cycle, grinding ratio , getting a better economy, use good shape retention , without regular replace the wheel and wheel dressing , saving time and improving working conditions conducive to machining operations .

How to achieve the best performance multi-chip saw blade alloy

In order to play a round alloy saw its best performance , must strictly observe the following points: ( 1 ) wire tapping machine should have a good performance, no vibration. ( 2 ) the size of France blue plate diameter should be consistent about French blue plate surface in contact with the saw blade saw blade diameter of 1/ 3 ( 3 ) should be perpendicular to diamond bandsaw blades  the centerline of the hole . ( 4 ) at both ends of the gasket surface should be parallel and perpendicular to the centerline of the hole .
( 5 ) Saw spindle runout straightness and definitely not super bad, spindle diameter does not exceed the tolerance H7 (6) multi-chip saw blade clean before installing the first , if the blade body sticky with resin , thinner wiping required go, and saw the body is coated with a protective layer , it can be wiped off with hot water , avoid using corrosive solvents. ( 7 ) If the blade has insensitive , should immediately grinding , taking care to keep the original serrated cutting angle . ( 8 ) when grinding not only to choose a suitable diamond grinding wheel, but also the use of coolant. ( 9 ) blade reamer recommends no more than 20 mm of the original hole , otherwise it will lead to loss of photos , then the effect will be affected by the cutting blade . ( 10 ) Each installation must ensure law and blue plate washer clean and smooth. ( 11 ) when the repair after grinding angle and saw the body must be careful not to manual operation, will result in jagged fragments and saw the body imbalances. ( 12 ) Gangsaw installation, careful iron rack and need feeding chamber was the same level. ( 13 ) before cutting blade to check whether the tightening has been installed , to prevent slipping on the  masonry drill bits shaft displacement and the blade . 1 blade If not used immediately , it should be flat or use the hole to hang it up, can not be stacked on other items or foot flat blade cutter , and pay attention to moisture, anti- corrosion. (2) When the blade is no longer sharp cutting surface roughness , it must promptly re- grinding. Grinding can not change the original angle , and destruction balancing . 3 inner diameter of the blade correction , the positioning hole machining , etc., must be performed by the manufacturer . If the process is bad, will affect the product effect, and potentially dangerous , reaming should not be over the original aperture 20mm, so as not to affect the stress balance. Choose alloy wheels 4 .
1 ) resin bonded diamond grinding wheel bond strength is weak, and therefore capable of self-sharpening grinding is good, clogging, high grinding efficiency, low grinding force , grinding temperature is low , the disadvantage is poor wear resistance, abrasive wear and tear , it is not suitable for heavy duty grinding.
2 ) vitrified diamond grinding wheel wear resistance and superior binding capacity of the resin binder, cutting sharp, high-alloy blade grinding efficiency , easy fever and congestion, less thermal expansion , easy to control the accuracy and disadvantages coarse grinding surface , higher cost .
3 ) high metal -bonded diamond grinding wheel bond strength , wear resistance, low wear, long life, low grinding costs , can withstand a greater load, but sharp poor, easy to plug .
4 ) There grit size wheel jam circular blades  and cutting the amount of a certain influence , coarse sand and fine sand compared , large depth of cut increases abrasive wear of the cutting edge , and vice versa wheel easy to plug .
5 ) Wheel hardness greater impact on clogging , high hardness, high thermal conductivity wheel is not conducive to the surface of the heat , but help to improve the machining accuracy and durability.
6 ) Wheel concentration choice is an important feature, its grinding efficiency and processing costs have a significant impact , affecting the efficiency of the concentration is too low , whereas abrasive easy to fall off , but the best combination of agent concentration range

Affect the efficiency of diamond saw blade main reason

One , sawing parameters:
( 1 ) blade speed : In practice , the line speed diamond saw blades by equipment conditions , saw the quality and the nature of the restrictions before sawing stone . From the optimum blade life and cutting efficiency , it should be selected depending on the nature of the stone saw blade speed . Sawing granite , the blade speed at 25m ~ 35m / s within the selected range . For high quartz content and difficult cutting granite , remove the blade speed limit is appropriate. Granite tiles in the sds hammer drill bits  production , the use of smaller diameter diamond saw blade , the line speed can reach 35m / s.
( 2 ) Cutting Depth : diamond cutting depth is related to wear , effective cutting , saw cutting force conditions and the nature of the important parameters of stone . Generally speaking, when the line speed diamond saw blade is high, should be selected for cutting of small depth , from the current technology , the cutting depth of the diamond can choose between 1mm ~ 10mm . Usually with a large diameter saw blade cutting granite blocks , the cutting depth can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time . When the line speed diamond saw blade is stone polishing pads  large , a large cutting depth should be selected . But in performance and tool strength saw the extent permitted , should try to take a greater depth of cut for cutting to improve cutting efficiency . When the machined surface when requested , should be used small depth of cut .
( 3 ) Feed speed : Cutting feedrate incurs stone feed rate . Its size sawing rate impact , the force and the cutting blade heat dissipation area . Its value should be based on the nature of the selected cutting stone . Generally speaking , sawing softer stone, such as marble, may  industrial saw blades be appropriate to increase the feed speed , if the feed rate is too low, more conducive to high cutting rates . Sawing fine structure , relatively homogeneous granite, may be appropriate to increase the feed speed , feed rate is too low if the diamond blade easily be polished . But sawing UNEVEN coarse granite structure , should reduce feed speed , otherwise it will cause the blade vibration and reduce fragmentation leading diamond cutting rates . Granite cutting feed rate is generally 9m ~ 12m/min within the selected range .

the cutting process can be divided into several categories

Commentary from the cutting tool diamond cutting process can be divided into several categories? Turning tools exceptionally round, bore, male, female, grooving, Hirth, Hirth ring groove, cutting and so on.
CNC lathe machines generally use a  diamond blade circular saw standard folder indexable cutters. Machine folder indexable cutter blades and cutter body has a standard blade material with carbide, coated carbide and high speed steel.
CNC lathe machine folder indexable cutting tool type cylindrical cutter, external thread cutter, inner circle tool, thread cutter, cutting tools, drilling tools (including the  granite polishing pad center hole drills, boring tools, taps, etc.).
Machine folder indexable clamping reground usually do not screw screw plate, bar pins or wedges and other structures.
Square Slotted knife blade for general use screws are fixed. Cylindrical shank is secured to the sleeve screws. Them with the connection between the machine tool cutter knife through the trough and sleeve extension bar to join. Turning tools in a modular system, the cutter shank coupled to rack connection as much, while the coupling head and the sanding discs  cutter body is "Insert quick-change systems." It can be used also for turning cylindrical bore boring, but also for turning centers ATC system.
CNC lathe tool used way from cutting into three categories: a round face cutting tools, end cutting tools and tool center hole category.

rules guiding mechanism of action of running

A two-way cutting machine
Bi-cutting machine is marble, granite sheet production line host, It as cutting tools diamond saw blades,The marble, granite blocks cut to the specifications of the plate thickness. Using programmable automatic electrical control system, shortageMaterial cut flat abrasive tools  top surface, the blade reciprocates distance and speed, producing the desired depth of cut strip, cut each vertical bladeCutting depth, horizontal blade cutting stroke and speed of completion of each vertical strip cutting blade rises and blocks the car shiftMove, the whole two-way repeated cutting machine working cycle, etc., in the preparation of procedures by the electronic control unit automatically controls the bidirectional cutting work. The aircraft reliable performance, easy operation, high cutting efficiency.The machine works as follows: mounted on the spindle of a vertical circular saw blade rotates, driven by the longitudinal vertical circle walking mechanismBlades for reciprocating linear motion, the vertical circular saw blades diamond saw cut stone crushing and cutting action produces the formation saw the roa. By elevating the feed device to achieve vertical saw blade up and down movement and accurate cutting tool. Gradually down the road saw that the stone sawingInto hair slats, and then by rotating horizontal circular saw blades for horizontal cutting movement, the hair cut is complete slat lath cutting the whole process. Bidirectional cutter blade can install both, one is a vertical blade diameter 900-1600 mm, and the other one is the diameter400 mm horizontal saw blade, producing slat width ranges from 300-600 mm. General marble plate production line cutting machine used to do two-way single host. The granite sheet production line is used more sawsPiece bi-cutting machine to make the host.Two, leveling machine Leveler mainly marble, granite  diamond grinding wheel sheet leveling process. The bi-directional cutting machine cut the strip into the levelerLeveling, leveling grinding machine using four continuous grinding (also can choose single head leveler), so that after leveling thick sheet input etc.Under the procedures for polished finish. After leveling the plate surface smooth, polished speed can be significantly improved, the cost can be as large polishedAmplitude is reduced.The machine works as follows: the spindle motor through V-belt drive turntable rotation, driven diamond grinding high speed spinTurn on the plate for grinding. After cutting through the raceway strip continuous conveyor to the conveyor belt, and the pressing mechanismRun under the rules guiding mechanism. In motion, step by step through the four diamond grinding leveling, to obtain a uniform thickness of the sheet materialDegrees. Production capacity of 150 ㎡ -200 ㎡ / 8h.Third, continuous grinding and polishing machine Continuous grinding and polishing machine marble, polished granite polishing sheet production line equipment, the cut strip after leveling fineLight grinding polishing, so that the drill bits  plane of the board to obtain a flat surface gloss. It can continuously and automatically complete the polishing stoneThe whole process of grinding and polishing high production efficiency, stable quality grinding and polishing plates, decorative plates batch processing is theThe machine works as follows: After leveling rear slats, through continuousconveyor roller conveyor to the machine, the clampingInstitutions and rules guiding mechanism of action of running. Rotated at high speed in the movement and a certain pressure grinding block dedicated polishingContinuous grinding and polishing disc, slat get on plane grinding and polishing to achieve the desired gloss requirements. Production capacity of 180 m -280 m / 8h.Fourth, automatic cutting machineAutomatic cutting machine is a marble, granite plate production line cutting equipment, cutting machine under the bidirectional slat twoEnd of the irregularities for cutting, grinding and polishing to achieve desired gloss slats cut works board.The machine works as follows: The belt drive motor to the spindle, the spindle and the circular saw blade rotation. Stone plate placed on theThe table, slide along the rail by movement of the circular saw blade for cutting sheet metal cut stone effect, thereby completing the cuttingProcessing.

manufacturing stone marble furniture maintenance

Marble furniture sold on the market with core drill bits  natural marble and artificial marble of the points, which have high quality and large natural marbleMarble and poor quality marble of the points, choose marble furniture must first understand the difference.Each one has a unique natural marble natural pattern and color, high-quality piece of marble furniture will chooseStone raw materials, materials used in different parts of the ratio. There will be a large area of ​​the main parts of the natural lines and scrap will be used inBack, stigma and other parts do embellishment. The poor quality of furniture when used in the preparation scrap, lack of change in the surface.The marble used in the furniture are generally green jade, purple jade, crystal pearl stone, jade unicorn, Heding, amethyst, White crystal and other varieties, including some species require staining, and green jade, purple and red jade dragon stone is natural. AThese inferior products will be low-grade white marble dyed green fake jade green, the color of most of these products was not natural emeraldGreen.Artificial marble is made of natural granite core bits  marble or granite gravel as filler, cement, plaster and unsaturated polyester resinLipid-adhesive, molding by mixing, grinding and polishing is made. Good transparency of artificial marble, and no gloss.Identification of artificial and natural marble has a more simple trick: a fewdrops of dilute hydrochloric acid, natural marble severe blistering,Artificial marble is weak or even non-foaming foaming.Radiation is very low natural marbleMarble furniture in addition to the robustness of the plate and has high environmental protection requirements, the radioactivity of the stone there are also strictControl. For a long time, people mistakenly think that marble furniture will have radiation, inevitably there are some concerns when buying. In fact,Natural marble radioactive low, basic will not cause harm to humans, and are highly radioactive artificial marble homeTools.Operating in the name of good century home, Depot and Fort China Lundy high, big brands such as TAG Zundian stone collected mainly from Italy,Mexico more than 20 countries, each one stone are to ensure compliance with European environmental standards, ray intensity far below the national controlStandards, and the  concrete grinding wheel stone surface using a transparent coat of paint, changing the stonework magnetic resonance with the human body, while the table is not easyBy oil pollution, erosion, easy cleaning, but also to feel the cold marble surface is improved.Marble furniture and maintenanceMarble is a porous material, it is easy to pollution, the water used for cleaning should be less, on a regular basis with a damp washing with a mildDetergent-free cloth, then wipe dry with a clean, soft cloth and polish. Badly worn marble furniture difficult to handle, the available steelVelvet cloth, then polish with an electric grinder, it restored the luster. Or abrasive cleaners carefully wipe with liquid, lemon availableJuice or vinegar to clean dirty, but the lemon stays on top, preferably not more than 1 to 2 minutes, if necessary, repeat the operation, and thenAfter the wash and dry. For minor abrasions, available exclusively marble cleaners and care agents.For old or precious marble furniture should be professional treatment, paint a marble furniture must paint strippingFrom agent treatment, should be in accordance with product instructions, mayrequire coating layers. Clear all the paint on the steel wool to wipeAnd polished with an electric grinder. Cosmetics, tea and tobacco stains, can be painted with a few Zhangzhou ammonia hydrogen peroxide, stay two smallWhen, then rinse and dry. For traces of oil, can be used in ethanol (alcohol), acetone (wood alcohol) or a lighter petrol to clean,Then rinse and dry.

machine with a diamond tool installation

Machine using a diamond cutter installation and alignmentAccording to select the appropriate size of the  workpiece using a diamond cutter machine. Clean the machine work table, positioning T-slot straight groove side of the bottom plane of diamond tools and locating key blocks positioned side, here are some of its steps.
 The first step: the base of the machine with a rotary tool with a diamond placed in the desired position on the  sds drill bit  machine table, as shown in Figure 1 a 67. Turn the dial on the bottom surface of the base block embedded positioning key intermediate T-slot straight slot. Check the wheel base of the 0 ° engraved lines and vise body aligned with the zero line, if you need directions rotated 90 jaws installation, concrete diamond blade can be zero on the line and turn
Machine flat diamond tool use(1) machine flat diamond tool installation machine flat diamond tool workpiece clamping, the  ceramic tile saw first machine using a diamond cutter mounted on the machine table, positioning keys embedded workbench positioning groove clamping screws fixed.2) machine flat diamond tools used should be selected according to the workpiece dimensions, such as clamping a rectangular workpiece, the workpiece length 180mm, height 50mm, width of 100mm, at this time, you can choose size of 200mm machine flat diamond tool . In a machine with a flat diamond tool clamping workpieces of different shapes can be designed several special jaws, as long as the  circular blades replacement of different forms of the jaw, can adapt to a variety of shapes of the workpiece, machine flat to expand the use of diamond tools range.(3) machine flat diamond tools used in a fixed workpiece clamping jaw and movable jaw, between the parties the exclusive use of the handle head sets, hand lever handle clamp the workpiece. Note that you can not use heavy percussion handle to avoid damage to the machine using a diamond cutter screw and nut. Use rotary chassis allows machine flat diamond tools required to rotate in a horizontal plane angle angle of rotation can be zero line and rotary clamp seat on the scale to determine the chassis.

carbide drill considerations

Selection of carbide drill, you first need to consider the size of drilling accuracy requirements. Generally, the smaller the aperture is processed, a tolerance is smaller. Therefore, manufacturers usually drill the hole to be processed according to the nominal diameter of the drill bit segments. In the above four types of carbide drills in solid carbide drill highest precision (φ10mm solid carbide drill tolerance range is 0 ~ 0.03mm), so it is the best choice for machining precision holes; welded carbide replaceable carbide drill or drill crown tolerance range is 0 ~ 0.07mm, more suitable for general accuracy of hole machining; installation carbide indexable insert drill is more suitable for heavy roughing, Although its processing cost is generally lower than several other bits, but its precision is relatively low, the carbide grinding wheels  tolerance range is 0 ~ 0.3mm (depending on the aspect ratio bits), so it is generally used for hole machining accuracy is not required , or by dress finished hole boring finishing blades.
(2) processing stability 
In addition to considering drilling accuracy requirements, the need to consider when you select the drill machine tool stability. Machine stability and service life for the safety drill drilling accuracy is essential, therefore need to carefully examine the machine spindle, fixtures and accessories working condition. Also, consider the stability of the drill itself. For example, the overall rigidity of the best carbide drill, so you can achieve very high precision. The carbide indexable insert drills structural stability is poor, prone to deflection. This bit is installed on two indexable inserts, inserts for machining holes in which the inner central portion of the processing of the outer blade at the outer diameter from the inner to the outer periphery of the blade portion. Since the initial stage in the processing of only the inner blade into cutting, drilling in an unstable state, can easily cause the drill body deflection, and the drill bit longer, the greater the amount of skew. Therefore, the use of longer than 4D carbide indexable insert drills for drilling, the drilling phase at the beginning should be appropriate to reduce the feed rate, cutting into the stable phase after the feed rate to normal levels . Welded carbide replaceable carbide drill bit and drill crown is composed of two symmetrical cutting edge geometry may be self-centering blade type, which has a high stability of the cutting edge designed to cut into the workpiece without reduce feed rate, and only when the bandsaw blades  bit inclined installation into a certain angle with the surface of the workpiece when cutting exception, this time recommended drill, drill feed rate will decrease from 30% to 50%. Because these drill steel drill body can produce small deformation, making it ideal for lathe; rather brittle solid carbide drills due for lathe machining easier to break, especially when the centering drill bit in poor condition This is especially true.
3 Chip and Coolant
BTA is drilling problems can not be ignored. In fact, most drilling encountered problem is poor chip removal (machining mild steel workpiece is especially true), and regardless of drills were unable to avoid this problem. Processing plant are often used outside the way into the auxiliary coolant chip, but this method only in the machining hole diameter and reduce the cutting depth is less than the case where parameters are valid. In addition, you must use the drill diameter to match the proper coolant type, flow and pressure. For the cooling system is not installed on the machine tool spindle, you should use coolant ducts. The deeper the hole to be machined, chip more difficult and requires the greater the pressure of the cooling fluid, should be recommended by the manufacturer of drill minimum coolant flow, such as cooling liquid flow rate is insufficient, the need to reduce the machining feed rate.
4 processing cost per hole
Productivity or each hole drilling processing costs affecting the most important factor. In order to improve productivity, drill manufacturers are working on a variety of operating processes can be integrated processing methods and the development to achieve high feed, high speed processing of the drilling tool.
The newly developed replaceable carbide drill crown has excellent machining economy. Bit wear, the user does not have to replace the entire drill body, you can simply replace the carbide tooth crown, and its purchase price is equivalent to welded or solid carbide drill regrinding a fee. Carbide crown replacement is easy and repeatable high precision, machine shop can drill body with a plurality of teeth crowns, to the processing of different pore size holes. This modular drilling system can be reduced 12 ~ 20mm diameter drill cataloging costs, but can also save on welding or grinding of solid carbide drills need to re-backup tool costs.
In considering the processing cost per hole, the total lifetime of the drill should be counted. Generally speaking, a solid carbide drill regrinding only 7 to 10 times, a welded carbide drill regrinding only 3 to 4 times, and replaceable carbide drill crown in the processing of steel material When the steel of the drill body can be replaced at least 20 to 30 times the crown.
As welded or solid carbide drills need to re-grinding, in order to avoid tool breakage, workshops in the  wet tile saw use of such drills tend to use lower cutting parameters, thus also affect drilling productivity. The replaceable carbide drill crown without regrinding, the workshop can be used in the processing of the largest feed rate and cutting speed without having to worry about damage to the crown.
In many cases, the solid carbide drill or welding after regrinding of the cutting edge shapes and edge processing state is difficult to completely match with the new drill bit, so the cutting is some difference with the new drill. In addition, if re-grinding process of the cutting edge mishandled may easily damaged blade, drilling torque and increased drilling force, cutting heat increase, leading to drill shortened life expectancy. While the new replaceable carbide drill life of the crown is more consistent.

diamond cutting tool is the hardest substance in nature

Produced with natural diamonds diamond cutter arc portion of its edge under the microscope at 600 times the unnotched, suitable for processing gold, silver, copper, aluminum (aluminum), zinc (zinc alloy), acrylic (PMMA) and other materials . Diamond cutter hardness and thermal conductivity is a natural substance in the highest natural diamond cutter so special knife with low consumption and long life unit easy to use features and to ensure high precision and mirror finish, roughness Ra ≤ 0.01um, △ 14 above. tip arc accuracy <1um, edge radius reaches satisfied fans middleweight, cut thin capacity <10mm. particularly suitable finishing copper and aluminum and their alloys, jewelry processing in aerospace manufacturing optical instruments watches instrumentation and other fields. widely used, such as: gold and asphalt blades  silver jewelry flower cars nameplate nameplate aluminum high gloss acrylic panel approved spent high light chamfering various specular highlights CD pattern turning Fresnel lens mold motor commutator pens watches accessories and non-ferrous metals mirror directional gyro computer hard substrate silicon lenses IOLs copier drum VCR drum tech products such as mirror cutting.
Natural diamond tool hardness HV9000-10000, is the hardest substance in nature. Cutting tool can be  tile cutting blades made longer maintain dimensional stability, and therefore have a long service life. Performance can be achieved roughness Ra (0.01-0.025) μm. Was at a high temperature under high pressure diamond powder plus solvent polymerization of polycrystalline materials, lower hardness than natural diamond (HV6000 or so), PCD cutting tools with carbide tools compared , hardness 3-4 times higher; wear resistance and high life 50-100 times; cutting speed can be increased 5-20 times; roughness can be achieved Ra0.05μm, brightness inferior to natural diamond cutters. High cutting efficiency, precision and stability.
Diamond Tool is a natural diamond cutting tools, medical natural diamond cutting tools, cutting tools into a series of  table saw blades lenses, VCR drum series dedicated tools, watches machining tool series, natural diamond knife Scope: metal car parts; auto parts; surface treatment ; technology products; carved; copper materials approved spending; acrylic mirror effect; mobile metal buttons; phones. Digital. MP3 shell; case. Nameplates, signs and high light stria; Car CD profiling; aluminum products high light; electrical enclosures approved spending; lenses, optical, infrared and other fields widely used.