Polycrystalline Diamond and Polycrystalline CBN are sintered with micron grain diamond and CBN in the condition of high temperature and high pressured. They have high wear-ability, high thermal resistant, high compressive strength and toughness of shock resistance, and are widely used in geological exploration, recovering petroleum, jewely industry and machining operation and so on. At present, main specification is as follows. Other specifications not mentioned on the following list are available according to customer's requirements.