Metal pipe connectors; Metal clad pipes; Metal hose clamps; Metal pipes and metal fittings therefor; Metal pipes for liquid and gas transfer; Elbows of metal for flexible pipes; Pipe coupling of metal; Metal pipe fittings for compressed air pipes; Metal hoses for agricultural use; Fittings of metal for compressed air hoses; Fittings of metal for compressed air lines; Metal threaded fasteners; Threaded metal rods; Metal thread adapters for use with hydraulic and pneumatic systems; Metal hardwa...