Yantai Mutual Benefit Co., Ltd is located in Yantai High-Tech Development Zone, near to Qingdao and Yantai port with convenient transportation. Since the company was founded, there are 16 construction machinery factories who can produce all kinds of undercarriage parts for us, Our main products concludes: track roller, top roller, idler, sprocket, track shoes, links, teeth, and hydraulic breaker, etc, which applied for CAT, KOMATSU, HITACHI, HYUNDAI, DOOW...