Machine tools for compacting powder materials, crushing rock; polyurethane parts for interconnection systems for machine tools, blades, scrapers, machine wheels, molded bearings particularly for mechanical lifting systems, elevators, machine tools, construction machinery, concrete plants, escalators, tamping rammers; machine parts, namely, molded bearings, sliding pads, drive wheels and systems, pulleys, rollers, snow plow blades, blades, concrete plant arm protectors, skirts and straightener...