Jining beauty rock construction machinery co.,ltd. specializes in supplying heavy equipment parts, which including Korean, Japanese and OEM excavator parts, engine parts, hydraulic main pump, hydraulic travel motor and reduction device, hydraulic swing motor and reduction device, undercarriage parts(track roller, carrier roller, front idler, sprocket, track link and shoe assy, track adjuster), excavator rubber track, hydraulic cylinders, hydraulic seal kits, slewing ring bearings, excavator bucket, electric parts, solenoid valve, hydraulic control valve, excavator cabin, joystick and foot valve.