Laminated or shaped construction material of metal, namely structural steel and iron sections, laminated steel, sectional steel, sectional iron; metal joists; metal sheet piles and metal bearing piles, iron sheet piles and iron bearing piles for use in building construction; prefabricated metal buildings and metal building materials used in construction, namely-- cellular beams, cambered and curved beams; asymmetrical metal beams, namely integrated floor beams, slim floor beams; assembled mem...