Metal hardware, namely, double-end swivels; Metal thread adapters for use with hydraulic and pneumatic systems; Metal adapters for use with hydraulic and pneumatic systems; Non-automatic fueling nozzles; Metal couplings for use with hydraulic and pneumatic systems; Valves of metal, other than parts of machines; Metal connectors for pipes; Metal pipes and metal fittings therefor; Metal nipples; Metal manifolds for use with hydraulic and pneumatic systems