Profile: Henan Sifang Super Hard Material Co., Ltd. manufactures polycrystalline diamond and some related products. Our PCD die blanks are polycrystalline diamond products, which is produced by advanced high temperature and ultra-high pressure in the presence of a solvent/catalyst metal. Our TSP is an unbacked polycrystalline diamond product, which is manufactured by the ultra-high pressure and high temperature techniques and it is suitable for mining bits and oil drilling bits. We are accredited with ISO 9001:2000 certification.