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Laishan Shengquan Industial park,Yantai,Shandong,China China
联系人 Ms. Linda Lv
办公地址 Laishan Shengquan Industial park, Yantai, Shandong
Yunsheng sucker rod couplings are manufactured from high quality Alloy Steel AISI 5I40, fully in accordence with API Spec 11B including class SM coupl
sucker rod coupling with different size 1-1/8" 1" 7/8" 3/4" 5/8" sucker rod coupling with different class class T class
The Class T sucker rod couplings are manufactured with a through hardness of between 16 and 23 Rc. This results in high tensile and fatigue strength f
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