... are PPGI,PPGL,GI,SGCC,AluzincStell Coils,stainless steelcoils and other steel coils. international standar .ADVANTAGES OF QUR PRODUCTS1, ... as,hot dipped Al-Zn steel sheet,hot-dip galvanized steel sheet and cold rolled steel sheet.After the suface pretreatment( ... chemical degreasing and conwersion),the surface must ...