Yantai Yunsheng Petroleum Machine Fittings Co.,Ltd.

Yunsheng is the manufacturer offering API sucker rod coupling in Shandong China. All the rod coupling produced by API 11 B standard.These sucker rod coupling are very cost effective,including class SM sucker rod coupling, class T sucker rod coupling, Sub sucker rod coupling, Full Size coupling, Slim Hole coupling. They are available in 5/8, 3/4, 7/8, 1 and 1-1/8. Manufactured with high quality Carbon steel AISI 5I40 /4135 .  If you have any interest in our sucker rod coupling, please feel free to contact us for further information!
The sucker rod couplings are manufactured from high quality Carbon steel AISI 5I40 or AISI 4135 in accordence with API Spec 11B standard, including class SM coupling, class T coupling and Sub coupling. Full Size coupling and Slim Hole coupling are avaliable. [Details]