Transmission shafts, other than for land vehicles; Shaft couplings for machines; Machine parts, namely, flexible shaft couplings; Shaft bearings for vacuum pumps; Air filters for gear drives; Cooling radiators for motors and engines; Filters for cleaning cooling air, for engines; Ball valves being parts of machines; Air-cooled condensers; Pump controlling valves; Fans for motors and engines; Electric fans, ventilators and blowers for motors and engines; Air condensers; Parts for compressed-ai...