Steel Sheet & PlateChina Sgch Full Hard G550, Dx51d 0.2mm Galvanized Roofing Steel Sheet / Zinc Color Coated Corrugated Sheet (Z30-275g), Find details about China Roofing Sheet, Galvanized Steel Sheet from Sgch Full Hard G550, Dx51d 0.2mm Galvanized Roofing Steel Sheet / Zinc Color Coated Corrugated Sheet (Z30-275g)