... 9001 As Shanghai Sangshan Machine Co., Ltd's Partners----shandong star steel sheet co,.ltdwe can offer PPGI ,PPGL ... dipped galvanized, Prepainted Our Colored/Galvanized Steel Sheet is mainly used as roof and wall for ... sheet, hot-dipped galvanized steel sheet, pre-painted alu-zinc steel sheet, alu-zinc steel sheet and aluminum sheet. ... more than products. Sangshan Machine Co., Ltd's Partner Can offer GI