Bearings for transmission shafts, being parts of machines; Compressed air machine components, namely, cylinders, valves and air grips; Connecting rods for machines, motors and engines; Crank shafts for machines, motors and engines; Cylinder head gaskets; Oil filters for motors and engines; Piston rings being engine parts; Pistons for engines; Pumps as parts of machines, motors and engines; Valves being parts of machines operated pneumatically and by air