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- Contact Person : Ms. Sun Nancy
- Company Name : Yantai Yunsheng Petroleum Machine Accessories Co., Ltd.
- Tel : 0086-535-6720805
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API SPEC 11B Big Chamfer Couplings, Class SM
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YUNSHENG is the professional manufacturer of API sucker rod couplings and has been in this business for many years.
YUNSHENG got the API certificate on June 1, 2009. The couplings have been exported to many countries and enjoy high reputation from our customer.
Our main products is SM couplings, T couplings and changeover couplings. All the couplings are made in full accordance with API standard, excellent in quality and reasonable in price.
API Sucker Rod Coupling with Big Chamfer1)Features: spray welding in general based on the hoop increases the exteral chamfer at both ends, greatly reducing the contact with the pipeline, but also by friction, abrasion resistance, extended collar and tubing life.2)Meterial: International 40Cr, AISI5140(seamless alloy steel)3)Standard: API Spec 11B4)Grade: SM class and T class5)Type: full size6)Size: 5/8"; 3/4"; 7/8"; 1"; 1-1/8"
For more information, please contact me at any time.
API SPEC 11B Big Chamfer Couplings, Class SM
