Color Steel Coil 1.ISO:9001,2000 2.Thickness:0.2-1.2mm ... Zn80---290g/m2Inner diameter: 508mm--610mmSurface Treatment: coatedCertification: ISO9001Weight of coil: 3--8 tonsPackage Method: Vertical, horizontalPainting thickness: 25 microns on ... roller shutter door.Construction industry(indoor): Door, door case, lightweight steel of house, screen, ceiling, elevator, staircase and ventilating duct. ...