... Sheet, GI, HDGIGradeSGCC, DX51D,etcSurface TreatmentChormated or not, oiled or notZn Coating50-275g/m2SpangleRegular spangle, small ... China in 2010.) Tianjin Haoyou mainly deals with steel product, coal, oil, Chemical product, skin ... Capital steel (shougang), An steel , Ben steel, WISCO, HBIS, Ma steel , Ji steel , TPCO ,etc. Operating metal material trade ... countries. ASTM A653 galvanized steel sheet