high density black silicon carbide online manufacture

Black Silicon Carbide Products With High Density , Large Crystai Black silicon carbide products,with high density,large crystals are smelted of high purity quartz sand,oil or coal,adapt the advanced technique ... Read More

Micro powder graphite Micro powder graphite using high speed mill, Raymond mill, air mill and other advanced grinding equipment. It is mainly used in powder metallurgy, lubricating oil, grease, dry battery, ... Read More