Credit standard implementation certificate

Private technology enterprises in Jiangsu Province

Private technology enterprises in Jiangsu Province

Jiangsu equity trading center is listed on the science and innovation board

Huai'an Engineering Technology Research Center

National Spark plan project certificate

National high-tech enterprises

New heat injection casing head

New casing head combination tool and wear-resistant bushing

New orifice plate throttle valve

Valve core positioning device of cylindrical throttle valve

Improved screw jacking device for casing head