... working 3.competitive price and best quality color coated steel roll name secondary steel coil and sheetmaterialTDC51D+Z,TDC51D+AZ,etcwidth1000 ... 1250mmThickness0.17-0.4mm Coat fabric2/1 (two coats for top, single coats for bottom)galvanizedTop:13-15micron, back:5- ... Step 2 Step 3 Step 4 Step 5 it is used in construction (sandwich panel, roofing tile), transportation, manufacture, light ...