Dezhou Haihua Petroleum Machinery Co., Ltd. was founded in 2012 and is located in Taitou Temple Industrial Park, Tianqu New District, Dezhou City, Shandong Province. It is a hightech enterprise that integrates product design, production, and service.Registered capital of 6 million yuan, factory area of 8500 square meters, and 75 employees. The annual production capacity of cylinder liners is 45000 units. The company is mainly engaged in the research and development of hydraulic end accessories for ail drilling pumps, and has obtained multiple achievements, ministerial level awards, and invention patents. We manufacture and supplier main products: valve box, cylinder liner,