Company Profile

Yantai,one of China’s 14 earliest coastal cities open to the world,is located in the eastern part of the Shandong Peninsula,and borders on the Yellow Sea and Bohai Sea,with beautiful scenery,pleasant weather,convenient traffic and developed economy.Yantai Yunsheng Petroleum Machinery Accessories Co.,Ltd.(“Yunsheng”for short)just sits here.


Yunsheng is a modern manufacturer of petroleum machinery accessories—sucker rod couplings.Since its foundation in 1997,Yunsheng has constantly introduced internationally production equipment.With 40-odd sets of equipment including universal millers,vertical drillers,centerless grinders,horizontal band sawing machines,CNC machines and automatic grinders,and sucker rod coupling production lines designed by our elite team,our monthly production can reach 50,000 pieces.


Yunsheng has independently developed Class SM couplings,Class T couplings and sub-couplings,which are widely applied in Shengli Oilfield,Zhongyuan Oilfield,Liaohe Oilfield,Xinjiang Oilfield and Daqing Oilfield,and exported to India,Russia,Central Asia,the Gulf region,Europe and America,with a high reputation at home and abroad.


To further improve product quality and brand awareness,Yunsheng has introduced a series of advanced testing equipment to enforce strict quality control from incoming materials to ex-factory finished products.


In the market concept of“Quality Is Lifeblood”,With strict tests on the hardness,chemical composition and mechanical properties of materials and finished products by advanced detecting instruments like microcomputer multi-element analyzers,Brinell hardmeters,and digital coating thickness gauges,Yunsheng is to guarantee top product quality,and fully interpret the corporate spirit of“Sincerity,Diligence,Innovation”.


In the development concept of“Survive by Quality,Develop by Credit”,Yunsheng has opened up a new frontier in the petroleum machinery accessories industry!