BALL VALVES, PIPELINE FLOW CONTROL DEVICES, CHECK VALVES, STOP VALVES, AND GATE VALVES; SCREWED AND FLANGED PIPE FITTINGS, COCKS, STOP CHECK VALVES, EMERGENCY VALVES, BUTTERFLY VALVES, THROTTLE VALVES, BALANCED VALVES, PRESSURE REGULATORS, TEMPERATURE CONTROL VALVES, RELIEF VALVES, EXHAUST RELIEF VALVES, SAFETY VALVES, BLOW-OFF VALVES, BACK PRESSURE VALVES; BOILER TRIMMINGS-NAMELY, FUSIBLE PLUGS, UNION FITTINGS, GAUGE COCKS, DRAIN COCKS; AND ENGINE TRIMMINGS-NAMELY, CYLINDER COCKS, CYLINDER RELIEF VALVES, GAUGE GLASS VALVES, VENT VALVES, STEAM AND AMMONIA SEPARATORS FOR REMOVING CONDENSATION, OIL SEPARATORS FOR REMOVING OIL FROM STEAM OR AIR, STRAINERS, STEAM TRAPS, EXPANSION PIPE JOINTS, PIPE FLANGES; PIPE UNIONS, SCREWED AND FLANGED; PIPE SUPPORTS AND HANGERS, DRIP POCKETS, ALL MADE OF BRASS, CAST IRON, MALLEABLE IRON, FERROSTEEL, CAST, FORGED, OR ROLLED STEEL OR OTHER ALLOY; FAUCETS, BIBBS, PLUMBING WASTE FIXTURES, FLUSH VALVES, MIXING VALVES, BALL COCKS, AND SUPPLY VALVES, ALL MADE OF BRASS, CAST IRON, MALLEABLE IRON OR OTHER ALLOYS; SINK TRAPS MADE OF EARTHENWARE, IRON OR BRASS; SHOWERS, CLOSETS, URINALS, SINKS, LAUNDRY WASH TRAYS, FLUSH TANKS; FOUNTAINS AND BATHROOM TRIMMINGS-NAMELY, CLOTHES HOOKS, SHELVES, TOWEL BARS, HOLDERS FOR TUMBLERS AND SOAP, ALL MADE OF IRON, BRASS, GLASS, MARBLE, WOOD, OR EARTHENWARE