Henan jingxin Diamond Abrasive CO.LTD is manufacture of Polycrystalline diamond (PCD) is diamond powder polycrystalline products produced by sintering together selected synthetic diamond with a metal matrix using very sophisticated high-temperature and high-pressure technology. Polycrystalline diamond (PCD) widely used in natural diamond bruting,geological drill bits,oil well drill bits and other PCD dressing tools.