AIR COMPRESSORS; CENTRIFUGAL PUMPS; COMPRESSED AIR PUMPS; ELECTRIC MOTORS FOR MACHINES; ELECTRIC PUMPS; HYDRAULIC PUMPS; [ INTERNAL COMBUSTION ENGINE PARTS, NAMELY, PISTONS; ] PNEUMATIC PUMPS; PUMP CONTROL VALVES; POWER OPERATED SPRAYERS; ROTARY PUMPS; SCREW PUMPS; SILT PUMPS; SUBMERSIBLE PUMPS; SUCTION PUMPS; SUMP PUMPS; TURBOMOLECULAR PUMPS; VACUUM PUMPS; VERTICAL TURBINE PUMPS; WATER PUMPS FOR [ SPAS, BATHS, WHIRLPOOLS, SWIMMING POOLS AND ] WATER FILTERING UNITS