73177834
Jul 20, 1978
Mar 17, 1981
Prefabricated Metal Building Materials-Namely, Structural Profiles, Coverings for Verges, Roof Edge Trims, Flashing, Roof Drains, Hatches, Roof Vents, Chimney Caps, Skylights and Roof and/or Terrace-Supporting Columns
Metal GoodsPrefabricated Nonmetal Building Materials-Namely, Roofing and Roofing Paper of Synthetic Material or Bitumen, Structural Profiles, Coverings for Verges, Roof Edge Trim, Flashing, Roof Drains, Hatches, Roof Vents, Chimney Caps, Skylights and Roof and/or Terrace Supporting Columns
Nonmetallic Building Materials