Metallic paint-spraying booths; prefabricated buildings of metal; transportable buildings of metal; collars of metal for fastening pipes; metallic containers for transport and storage purposes; ducts of metal for ventilating and air conditioning facilities; non-mechanical metallic hoppers of metal for collection of materials in bulk; metal pipe couplings; latticework of metal; manifolds of metal for pipelines; air nozzles of metal for industrial use; paint spraying booths of metal; pipe muffs...