Couplings, fittings and clamps all for metal tubes, for pipes and for flexible hose; devices for connecting metal tubes, pipes and flexible hose to tanks, nozzles, valves, motors and pumps, all being wholly or principally of common metals; metal or metal reinforced hose or tubing; metal guards or clamps for hoses and tubing

O-rings, seals and packing, jointings, gaskets, stopping materials; non-metallic couplings, fittings, clamps and guards all for pipes, for tubes and for hose; tubing and hose all of rubber or of plastic, metal reinforced plastic or rubber tubing and hose