trapezoid corrugated steel sheet 1.thickness:0.5,0.6,0.8mm 2.rib height:26mm 3.rib span:205mm 4.effective length:1025mm Trapezoidal corrugated steel sheetRaw materials: Color steel coil, which is usually used in High grade metallic roof, is steel that for construction. It is light, weatherable, stain-resistant, and easy to be welded, and its structure strength is moderate.Application:Trapezoidal ...