Yantai yunsheng petroleum machine accessories co., ltd.

Yantai Yunsheng Petroleum Machine Accessories Co., Ltd, founded in 1997, is a professional manufacturer producing API approved sucker rod couplings, includin Spray Metal sucker rod coupling, calss T sucker rod coupling, Sub OD sucker rod coupling, Full size sucker rod coupling and Slim Hole sucker rod coupling,with the size range of 5/8", 3/4", 7/8", 1" 1-1/8". Materials is AISI 5140¿Monthly production capacity reach to 20,000pcs.All of our products are excellent in quality and low in price.

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