6
Metal Goods
9
Electrical and Scientific Apparatus
11
CONSTANT PRESSURE PUMP GOVERNORS; EXCESS OR DIFFERENTIAL PUMP GOVERNORS; BOILER GAS FUEL GOVERNORS; PRESSURE REDUCING VALVES; DIAPHRAGM CONTROL VALVES; FLOAT VALVES; PRESSURE RELIEF VALVES; BACK PRESSURE VALVES; ALTITUDE VALVES; PRESSURE PILOT VALVES; LEVER VALVES; ATMOSPHERIC RELIEF VALVES; VACUUM REGULATORS; GAS REGULATORS; TIME TEMPERATURE GAS PRESSURE BOOSTER REGULATORS; PRESSURE BALANCED REGULATORS; PRESSURE REGULATORS; SAFETY SHUT-OFF REGULATORS; DIFFERENTIAL GAS PRESSURE BOOSTER REGULATORS; FLOAT UNITS, INCLUDING A HOLLOW FLOAT, A FLOAT ARM, A SHAFT, USUALLY A STUFFING BOX, AND SOMETIMES OTHER PARTS FOR INSTALLATION IN LIQUID LEVEL CONTROLLERS OR FOR CONTROLLING VALVES, SIGNAL SWITCHES AND OTHER DEVICES BY CHANGE IN LIQUID LEVEL; STEAM TRAPS; GASOLINE AND OIL TRAPS; AIR TRAPS; STEAM AND OIL SEPARATORS; PIPE LINE STRAINERS; CONTINUOUS DRAINERS; LIQUID LEVEL CONTROLLERS; EXHAUST HEADS AND AIR LINE FILTERS AND AIR AND GAS FILTERS FOR OTHER THAN ENGINE FUEL CONTROL AND AIR CONDITIONING; AND LIQUEFIED PETROLEUM GAS REGULATORS FOR CONTROL OF SUPPLY FROM DRUMS AND TANKS TO SERVICE POINTS AND ACCESSORY EQUIPMENT