Common metals and their alloys; composite building panels being laminated panels having metal skins and an inner insulating layer; composite building panels being laminated panels having a steel skin and a polymer core; composite building panels comprising laminations of steel and insulation materials; sheet metal fabrications including insulated metallic sheet metal fabrications; extrusions of metal including extrusions of insulated metal; parts and accessories for all of the foregoing

Plastics in extruded form for use in manufacture; packing, stopping and insulating materials; insulating foam materials; insulators

Roofing panels of metal; roofing of metal; sheets of metal; roofing sheets of metal; sheet metal for roofing; metal roofing; sandwich sheets of metal; roofing materials of metal in the form of sheets

Roofing of metal