corrugated steel sheet 1.ISO9001 2.Grade 33-grade 80.;SGLCC SGLCD ... ,color…oiled / Un-oiled, bright oiled……APPLICATIONstructural use, roofing, commercial use ,household appliance,industry,family…SPECIALAPPLICATIONwear resistant steel, high-strength-steel plate ... lines, one for galvanized steel sheet in coil, second for galvalume steel sheet in coil, third for color prepainted steel sheet in coil, not ...