Yantai Yunsheng Petroleum Machine Accessories Co.,

China Manufacturer with main products: sucker rod coupling is made according to API SPEC 11B, the raw meterial is good steel alloy 40cr, and the function is wear-proof,...

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sucker rod coupling

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Place of Origin: Shandong Yantai in China
Packaging Details: BOX


sucker rod coupling is made according to API SPEC 11B,the raw material is good quality steel alloy 40cr,it has three functions:wear-proof,corrosion-proof and reducing the friction. guochuijie(at)

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