Metal pipes and tubes; common metals and their alloys; unwrought or semi-wrought common metals; ores of metal; unwrought or semi-wrought iron; unwrought or semi-wrought steel; steel wire; steel; steel pipes; steel sheets; unwrought or semi-wrought non-ferrous metals; metallic materials for exclusive use in building or construction, namely, framework of metal for building, girders of metal, beams of metal, brackets of metal for building, metal reinforcement materials for buildings, metal build...

Metal pipes and tubes; common metals and their alloys; unwrought or semi-wrought common metals; ores of metal; unwrought or semi-wrought iron; unwrought or semi-wrought steel; steel wire; steel; steel pipes; steel sheets; unwrought or semi-wrought non-ferrous metals; metallic materials for exclusive use in building or construction, namely, framework of metal for building, girders of metal, beams of metal, brackets of metal for building, metal reinforcement materials for buildings, metal build...