Puyang Kerui Mechanical Engineering Technology Co., Ltd. was established in 2001 and passed IS09001 certification in 2007. It is a professional enterprise which specialized in design, OEM, production, the well-known manufacturer in petroleum machinery field and the strategic partner of Zhongyuan Oilfield. Kerui have a number of patented products. To ensure the research and development of new products and shorten the product development cycle, we use CAD design and modular design concept. Ensure the strategy development goal of “promote one generation, develop one generation, store one generation” and successfully provide effective solutions for downhole operation with the research and development spirit of "I have what competitors not have; I have better products than competitors. Relying on the driving forces of ”Development depends on high technology, powerful depends on elite staff ”, Kerui have become the most trusted enterprise of Zhongyuan, Xinjiang Kalamayi, Changqing, Yanchang, Jilin Oilfield and other partners, committing as leader in the petroleum machinery filed.