We Dongying Jianxin Petroleum Equipment Co., Ltd were founded in 2002, locating in Dongying, Yellow River Delta, in China . We own four factories including solids control equipment factories, machine processing workshop, steel casting factory and new electric power equipment factory. We manufacture a wide range of products: Drilling fluid solids control equipment, oil drilling rigs, drill workover rig, oilfield special equipment, petroleum production equipment, drilling rigs, servicing rig parts, series of oilfield drilling and pipes ,mining machinery,electromechanical device, patent tubing anchor; pumping unit; to design , drilling tools and also high voltage insulation equipment .