Metalworking; treatment of metal; custom manufacture of hollow sections of metal, pipes and tubes of metal, plates of metal, girders of metal, structures of metal, frameworks of metal, bodies for vehicles of metal, and parts for vehicles of metal; consultation relating to metalworking, treatment of metal and custom manufacture of hollow sections of metal, pipes and tubes of metal, plates of metal, girders of metal, structures of metal, frameworks of metal, bodies for vehicles of metal, and pa...