Common metals and their alloys, unwrought or semi-wrought; common metals and their alloys including stainless steel; iron and steel for use as raw materials for automobile parts; transportable metal constructions; frames of metal for building; building panels of metal; wall panels of metal; steel frames for building; metal cladding for construction and building; metal reinforcement materials for building; sheets of metal; steel strips; steel sheets; heavy plates in the nature of steel in the ...