... oxide, carbon powder, charcoal powder, slag, gypsum, tailings, sewage sludge, kaolin, activated carbon, coke powder and other powder, powder, waste, ... blank is divided into: integral forging and casting, the casting of small density, structure of rough, ... AlloysteelAlloy steelAlloy steelAlloy steelAlloy steelAlloy steelAlloy steelDie-casting StrutureDouble roll single pressureDouble roll single ...