6
Casings of metal; Elbows of metal for pipes; Metal expansion joints for floors and walls; Metal junctions for pipes; Metal pipe collars; Metal pipe connectors; Metal pipe couplings and joints; Metal pipe fittings; Metal pipe muffs; Metal pipes; Metal pipes and fittings therefor; Metal pipes for liquid and gas transfer; Metal plugs; Metal seals; Metal tubes; Metal tubing; Metal vent cover for HVAC ducts; Metal water pipes
7
Centrifugal pumps; Electric compressors; Electric pumps; Heat exchangers being parts of machines; Hydraulic valve actuators; (( Macerator pumps;)) Machine parts namely, flexible shaft couplings; Machine parts, namely, bearing housings; Machine parts, namely, bearing inserts; Machine parts, namely, cylinders; Machine parts, namely, roller bearings; (( Machine used for process filtration in the pharmaceutical industry; Machinery for applying ultrasonic coatings to medical apparatus; )) Mechanical seals ; (( Motors and pumps for refrigerators and freezers; Multi-phase screw pumps; Nozzles for particle blast cleaning machines and structural parts thereof; )) Pneumatic pumps; Pneumatic valve actuators; Pump control valves; Pump impellers; Pumps for cooling engines; Regulators being parts of machines; Reverse osmosis pumps; Rotary pumps; Screw pumps; Servo-valves; Servomotors; Shaft bearings for vacuum pumps; Shaft couplings for machines; Shafts for pumps; Silt pumps; Sludge pumps; Submersible pumps; Suction pumps; Sump pumps; Vacuum pumps; Valves for pumps; Water pumps for use in motors and engines; Windmill pumps