... , kaolin , activated carbon, coke powder and other end , Powder , waste, waste residues, are widely used in refractory , power plants , metallurgy , ... copper scrap, aluminum scrap, etc.), granular powder metal powder (iron powder, aluminum powder, copper powder, lead powder, etc.) , metallurgical additives, sponge iron ... the two vice-roll pre-suppress materials in the form of pipeline to lay a solid ...