With more than thirty years research and development, ZHENGZHOU SIFANG SUPER HARD MATERIALS CO.LTD. , established in 1995, has grown to a large professional manufacturer and exporter of Diamond and Cubic Boron Nitride (CBN) Grinding Tools in china. ZHENGZHOU SIFANG SUPERHARD MATERIALS CO., LTD not only adopts the foreign advanced equipment and technology , but also manufactures each and every product under the strictest quality control procedures, which can reach the high quality , stability and consistency . At present, our diamond and CBN products with the bond of resin and electroplate are more than 300 types and specifications, including diamond and CBN grinding wheel, lapping paste, diamond core drills bits, saw blades, diamond profile wheel, diam...