6 [ ironmongery, namely, metal pipes, metal pipe couplings, metal manual valves for fluids and air, metal sleeves for pipes, metal junctions for pipes, primarily metal high-pressure flexible hoses; metal pipes for distributing paints, spray treating products in agriculture, industrial cleaning and vaporizing liquids; parts and fitting of the foregoing, namely, metal couplings, metal plug-in couplings, metal connectors, manually operated metal valves for liquid and air, metal inserts, metal seats or inlet valves and metal joints ]