www.ytyunsheng.comExport DepartmentAlice LiPhone: 86 - 0535 - 6908536/86 - 15053559530Fax: 86 - 0535 - 6728219
Laishan Shengquan Industrial Park,Yantai,264003,CHINAYantai, ShandongChina, 264003Web Page Link: http://www.toboc.com/yantaiyunshengpetroleummachineaccessoriescoltd
Our sucker rod couplings are manufactured from high quality Carbon steel AISI 5I40 or AISI 4135 fully in accordance with API Spec 11B standard, including class SM coupling, class T coupling, Sub coupling, Full Size coupling, Slim Hole coupling, and the size are available in 5/8”, 3/4”, 7/8”, 1” and 1 1/8”.
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Yantai Yunsheng Petroleum Machine Accessories Co.,