Diamond thin cutting disc the film diamond is a variant of a polymorph of the crystalline structure of carbon, which typically contains a small number of different chemical composition of impurities; in the hitherto known substances, diamond hardness maximum. Diamond is the natural form of primary ore and placer can also synthetic carbonaceous matter.

1, free of defects and impurities in the crystal internal transparent crystal known as gem diamonds (diamonds), it is mainly used for decorations, it accounted for 10% -15% of the natural diamond, generally hundreds of times more than all gold.

2 crystal internal defects (such as inclusions, spots, cracks), or due to containing a small amount of other elements so crystal internal defects but belong to the industrial-grade diamond color decorations ideal diamond, it is used in the manufacture of diamond tools. The tool generally selection of high-quality industrial diamond as raw material.

3, similar to the basic performance of the single crystal synthetic and natural single crystal, the poor just because it is the quality of the product and its stability problems, as well as same physical material cost than natural diamond, while restricting the tool widely used .cutting wheel

4, synthetic polycrystalline diamond (PCD) is constituted by the number of diamond fine particles, the diamond thin cutting chip with a diamond as the main ingredient, commonly known as polycrystalline or poly-crystal. The composite film is polycrystalline diamond composite to a superhard material the carbide body on the It combines the high intensity of the high hardness of diamond and carbide welding and polycrystalline diamond characteristics.