We are the professional supplier of XCMG, HANDLER, XCG and Zoomlion Heavy Industry, more details, we are cooperate with Beijing Keqiang technology company.Our company can offer products as following:1. Slewing bearings(slewing rings, slewing bearing rings, roller rings)2. Slew drive(slewing bearing, housing, worm shaft, motor)3. Undercarriage parts(recoil spring, idler, sprocket, track roller, carriaer roller)4. Recoil spring5. Idler6. Sprocket7. Track roller8. Carrier roller9. Phosphate machinery10. Quenching machineryApplications: Cranes/ Excavator/Solar energy/overhead working truck/other machine.Superior quality, resanable price and good afterservice are our advantage, if you have any question, pls contact me without any hesitation.