Metal pipes and tubes; cast iron, cast iron for use in hydraulics, sanitation, road systems and buildings; manhole covers and underground chambers all of cast-iron or metal; gratings of cast-iron or metal; cast-iron gullies; underground chamber covers of cast iron; cast iron or metal for use in the manufacture of ornaments and decoration; posts of cast-iron or metal, baskets made of cast-iron or metal, cast-iron chimney plates; modular covering of cast iron for gutters and hoppers; equipment for furnishing special rooms, watertight or not, of ductile cast iron, of steel, of stainless steel, of galvanised steel and of aluminum