... /m2Inner diameter: 508mm--610mmSurface Treatment: coatedCertification: ISO9001Weight of coil: 3--8 tonsPackage Method: Vertical, horizontalPainting ... industry(indoor): Door, door case, lightweight steel of house, screen, ceiling, elevator, staircase and ventilating ... maker.Furniture indusry: Heating unit, lampshade, chest of drawers, table, bed,locker and bookshelf.Transportation industry: ...