Yantai Yunsheng Petroleum Machine Accessories Co., Ltd.

 Yantai Yunsheng Petroleun Machine Accessories Co., Ltd. founded in ***7, is a Private limited liability company specializing in the manufacture and export of sucker rod coupling, including SM full size coupling, SM slim hole coupling, T full size coupling, T slim hole coupling and Sub OD coupling, which are made according to the API Spec *1B. For more information, You may also visit our online company, in which includes our latest product line: www[dot]ytyunsheng[dot]com  It is the only one company to use the technology of alloy coat on the sucker rod joint for rustproof at Yantai, and we are the first factory own oil-sucker rod coupling alloy spray aseptic technic in Yantai, China.  Our company has fixed assets RMB *0, **0, **0.*0 yuan, **0 employees, among them there are *6 engineers. It covers ****0 square metres, and construction area is over ***0 square metres.  we have got the API Certificate and also have passed the ISO***1:***0 certification early at ***5.