Bearings, as parts of machines; Machine wheelwork; Machine parts, namely, joints and joint parts for connecting sliding strips, plates and guides; Roller bearings for machines; Transmissions for machines; 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, agri...