7 Power-operated lift used to transport and place portable storage containers; Variable frequency drives for large power applications in the oil and gas, metal, marine and other Industries; Beam trolley for attaching hoists; Cranes, namely, gantry cranes and jib cranes; Electric and pneumatic hoists; Metal parts and fittings for power-operated lifting equipment; Self-lubricating mechanical friction parts, especially of composite materials, namely, wear rings, washers, bushings, spherical bearings, bearing pads, sliding blocks and machine transmission gears all for load bearing machines, conveyors, handling trucks and machines, lifting machines, agricultural machinery, construction equipment machines and hydraulic turbines