Yantai Yunsheng Petroleun Machine Accessories Co., Ltd. funded in 1997, presently is one of biggest enterprises producing double protection sucker rod joint inside China.

Our company is located in Laishan Shengquan Industrial Park, beautiful seashore city- Yantai, to north neighbouring Yantai Port, to south next to Yantai Airport, with beautiful scenery, comfortable climate and convinent traffic. Furthermore, our company has fixed assets RMB 10,000,000.00 yuan, 150 employees, among them there ...