Aquarium pumps; Back pressure valves as parts of machines; Centrifugal pumps; Compression moulding machines; Electric motors for power tools; Engine fuel pumps; Fuel and air mixture regulators being parts of internal combustion engines; Hydraulic valves being parts of machines; Oil pumps for use in motors and engines; Pneumatic air preparation equipment, namely, airline filters, lubricators, and regulators, all being parts of machines; Power-operated lawn and garden string trimmers; Power too...