plumbing including screw valves, diverter valves, ball valves,
gate valves, flange valves, strainers, control valves, butterfly valves,
air vent valves, solenoid valves, traps, separators, investment casting valves,
swiches, regulators, gauges, flowmeters, rotameters, reducing valves,
safety valves, check valves, bellows valves, jacket valves, bottom tank valves,
positioners, joints, globe valves, silencers, foot valves, needle valves,
diaphragm valves, porcelaneous valves, quick couplings.