Yantai Yunsheng Petroleum Machine Accessories Co. Ltd., founded in 2005, is a professional manufacturer of API Spec 11B Sucker Rod Couplings, including Spray Metal coupling, class T Sub OD coupling. ...
Address：No.26 Road,Shengquan Indusitral Park,Laishan district,YantaiBusiness type：Manufacturer,Exporter,Distributor,Wholesaler/Retai