... :as your requirement 4:ID:508-610mm Brick prepainted galvanized steel coil 1.Introduction SpecificationBase MaterialHDGIALUZINCCRGradeSGCC, DX5ID, ASTM, EN10142, S350GD, etcThickness0 ... , etc.Indoor applicationRoom doors, dividing walls, door frames, light house steel structures, sliding doors, screens, ceilings, toilets, interior elevator lobby, stairwayventilating duct ...