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 interests on our sucker rod coupling, please feel free to contact us for further information!
Contact person:Grace Xu
Street address: Laishan Shengquan Industrial Park,Yantai ,China.