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TKD CO., LTD is mainly engaged in R&D composite super-hard materials and super-hard materials products production and sales. It is a high technique company integrating R&D, produce, sale and service. TKD's Polycrystalline Diamond Composites(PDC) Products are widely used in oil and gas drilling, mining, metals, ceramics, wood, composite materials and other materials for machining field. Our products are well sold not only in the domestic, but also to Europe, America, Africa, Southeast Asia and so on more than 50 countries and regions the export ratio is about 60%