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. and Xinjiang Caifeng Petroleum Engineering Technology Service Co., Ltd. Our company has established nine branches and representative offices in Beijing, Xinjiang, the Southwest, Daqing, Shanxi, Xi’an, Yan’an, Dingbian, and Zhejiang etc; our products have also been exported to North America, Europe, South Asia, and Middle East main oilfields etc.

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 an