Windows, not of metal; doors, not of metal; building materials, not of metal; gutter pipes, not of metal; plastic boards for construction purpose; door panels, not of metal; plastic tubes for building use; drain pipes, not of metal; plastic-steel doors and windows

Common metals, unwrought or semi-wrought; windows of metal; framework of metal for building; doors of metal; joists of metal; building materials of metal; reinforcing materials of metal for building; bolts of metal; fittings of metal for windows; ironmongery.