Graphite Powder, Silicon Carbide, Recarburizer manufacturer / supplier in China, offering China High Purity Black Silicon Carbide Sic98% 0-1mm as Deoxidizer, High Purity Abrasive Refractory Material Black Silicon Carbide Sic 98% 0-1mm 100 Mesh 200mesh 325mesh for Iron and Steel Industry, China Manufacturer Black Silicon Carbide98% 0-1mm for Casting and Steelmaking Ceramic Refractory and so on.