... kinds of silicon metal like 553, 441,421,411,4405,4105, 3303,2502, 2202, 1101 etc. We are devoted to providing ... kinds of silicon metal like 553, 441,421,411,4405,4105, 3303,2502, 2202, 1101 etc. Standard of Silicon Metal GradeChemical ... packing forms are available upon customer's request. Silicon Metal 4105