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NO.26 Dongxing Road,Yantai,Shandong,China China
Material: high quality steel alloy 40cr Surface Hardness:HRC50-65 Hole rate;
SUB sucker rod coupling is used for connecting two diffierent size sucker rod. It is strictly in accordance with API 11B standard.
1.AISI5140 material 2.API spec 11 B standard 3.Longer service life 4.Nickle wear resisting 5.high quality with competitive price
1.AISI 5140 material 2.API spec 11 B standard 3.Longer service life 4.Nickle wear resisting 5.high quality with competitive price
الشخص الذي يمكن الاتصال به Ms. Cathleen Gao
عنوان NO.26 Dongxing Road, Yantai, Shandong
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