... Steel Color Steel CoilRaw Material:Hot Dip Galvanized Steel Coil/Hot Dip AL-ZN Coated Steel CoilZn:60-275g/m2 ... ,SGCCSurface treatment:chromated,unoiled/oiled,bright finished,spangle,fingerprint resistance.Surface protection:PE,PVDF,HDP,SMPThickness of top coating: ... 20-25umThickness of back coating:7-12umWeight of coil:1-8TPackage Method:Vertical,HorizontalApplication:general using,for roof, ...