Steel Api 11b Class T Sucker Rod Coupling

Shandong Shouguang Kunlong Petroleum Machinery Co., Ltd, as a high-tech joint stock corporation specialized in the R&D, manufacturing of petroleum machinery and supporting petroleum engineering service, was established in 2000. Kunlong owns three wholly-owned subsidiaries: Shandong Longhao Petroleum Equipment Co., Ltd., Xinjiang Kunlong Petroleum Equipment Co., Ltd. Our company has established nine branches and representative offices in Beijing, Xinjiang, the Southwest, Daqing, Shanxi,Xian, Dingbian, and Zhejiang etc; Our products have also been exported to North America, Europe, South Asia, and Middle East main oilfields etc. Our company highly conforms to the market demands, and emphases on researching the automatic and intelligent, and energy efficient and environment friendly new products. Our company has awarded many honorary titles: "the High-Tech Enterprise in Shandong Province", "Shandong Enterprise Technology Center", "Weifang City Engineering Research Center", "Weifang City Enterprise Research Center", "Weifang City Industry Design Center ", and "Shouguang City Excellent Enterprise", to be the key enterprise for national petroleum equipment base. Till the end of 2016, our company has obtained 54 national intellectual property patents, including 5 invention patents; 30 new products and technologies have passed provincial identification of acceptance, with an international and domestic advanced level. Our main products: 1. Designing and producing different types of sucker rod pump with one piece barrel, rod pump, anti-sand sucker rod pump with long plunger, injection-production sucker rod pump with long plunger, hydraulic feedback sucker rod pump, anti-corrosive sucker rod pump with double valves, deviated well sucker rod pump, anti-airlock sucker rod pump, overbridge sucker rod pump, anti-scale sucker rod pump and other special sucker rod pumps and relevant fittings; 2. Designing and producing intelligent PC pump, drive head( direct drive and lateral drive), single-head PCP, multiple-head PCP, hollow rotor PCP, anti-sand PCP, well flushing PCP, uniform-thickness PCP and relevant rod string; 3. Designing and producing sucker rods for grade D, H, K, polished rod, sinker bar, anti-corrosion spray metal polished rod, anti-corrosion tungsten plated polished rod, sucker rod for horizontal well, sucker rod centralizer for paraffin scraping, drive rod for plug-in type solid ( hollow) PC pump, hollow sucker (polished) rod and couplings; 4. Designing and producing multi-function sealing devices for polished rods, rod centralizer, roller guide, polished rod clamp, casing coupling, tubing coupling, class SM sucker rod coupling and other drilling and exploring accessories; 5. Producing the precision rolling pipe for pump barrel, pump plunger, hollow sucker rod, and sucker rod coupling etc; 6. Professional service in sucker rod and pump, especially for well condition with corrosive, eccentric wear, heavy oil and direction well; 7. Providing oilfields petroleum equipment inspection and maintenance services. All the Kunlong staff commit to the core value "customer focused, striver oriented", and comply with the belief "profession that wins trust and devotion that wins heart". And with the attitude "profession and concentration", we are committed to supply you with quality products, excellent service and ultimate solutions to satisfy your requirements, to be the excellent innovator for the world petroleum equipment and technology service! Our president, Mr. Faxiang Wu, and all staff appreciate your attention and love to Kunlong, and sincerely welcome friends from home and abroad and achieve win-win for bright future together!