Calcium Silicon is ideal rubber oxygen,desulfurizer. Be used to the production of quality,special steel and special alloy steel Size: -200mesh, -100mesh, -60mesh, 0-0.4 mm, 0-1 mm, 0-2mm, 2-5 mm, 10-50 mm, 10-100 mm, 10-200 mm, as the client's requirement. CaSi 20-200mm: CaSi 10-50mm: CaSi 0-2mm: QUALITY MANAGEMENT SYSTEM CERTIFICATE: Yangquan SLS International Trade Co.,Ltd,which was founded in ...