7 Machine parts, namely, cylinders; Air and hydraulic cylinders for vehicles other than land vehicles; Internal combustion engine parts, namely, pistons; Couplings for machines; Clutches for machines; Shaft couplings for machines; Machine parts, namely, molds for use in the manufacture of aluminum products, namely structural parts for automobiles, building materials, and structural parts for machine cylinders; Dies for use with machine tools; Connecting rods for machines, motors and engines; Internal combustion land vehicle engine parts, namely, connecting rods; Vehicle engine parts, namely, push rods