... weight, heat insulation 3.Installation is convenient color steel wall sheet 820mmthickness0.25~0.8(mm)Effective ... heat insulation, water resistant, green and environmentalUseRoofing, walls, workshop etc1 color steel wall sheet 820mm is excellent in ... steel sheets has elegant appearance and good durability.5, it can be used in wall face of the office buildings, workshops, and large public color steel ...