Hebei Plasma Diamond Technology Co., Ltd. was established by Hebei Institute of Laser, mainly engaged in the research and development of CVD diamond. CVD diamond (nano) coating drawing Die is that based on cemented carbide die, after special surface treatment, polycrystalline diamond film is deposited in the inner hole of cemented carbide drawing die by chemical vapor deposition. Product features: 1.CVD diamond coating was prepared by DC arc plasma jet deposition equipment, which has high purity of diamond and strong adhesion between film and substrate; 2.DC arc plasma jet is a kind of plasma