... 1) Thickness: 0.25-1.2mm; Production Description1. Name: Prepainted Galvanized coil2. Quality: SPCC DX51D3. Thickness: 0.16-1.00mm4. ... : hot dipped Galvalume steel coil (SGCC,DX51D....)3. Technology: based on cold rolled, then hot-dipped galvanized, at last color ... pipe, roller shutter doorB. Inside: door, door case, light steel roof structure, folding screen,ceiling, elevator, stairway, vent gutter ...