Excel Hard Tools Co., Ltd is a leading supplier in super-hard material products, mainly including Polycrystalline Diamond Compact (PDC), Polycrystalline Diamond wire drawing die blanks, polycrystalline cubic boron nitride compact cutters, polycrystalline diamond compact cutters, polycrystalline cubic boron nitride block cutters, thermal stable polycrystalline diamond boron nitride cutters, polycrystalline diamond cutter