Common metals and their alloys; metal building materials and metal building products; 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; prefabricated building 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