Longkou Longji Three Pumps Co., Ltd. is one of the holding subsidiaries and backbone enterprises of Longji Group. It mainly develops, produces and sells automobile air pumps, water pumps and oil pumps. It can produce 1 million air pumps, 600000 water pumps and 600000 oil pumps annually. Its industrial scale ranks among the top in the same industry in China. In the course of nearly half a century of development, the company has accumulated rich production experience; and has formed a proprietary core process technology; the company has a high-quality professional R & D team, and all product designs adopt industry-leading design software. Strong new product development capabilities. The three-pump products developed have won many national, provincial, prefectural and municipal science and technology progress awards and new product awards. Among them, the "Longji" brand trademark graphics used in air pumps and water pump products have been rated as "Shandong Famous Trademark" by the Shandong Provincial Administration for Industry and Commerce; air pumps and water pump products have been rated as "Shandong Famous Brand"; automobile air compressor assemblies have successfully passed the scientific and technological achievements appraisal of the Provincial Science and Technology Department. The company's products are mainly Deutz FAW (Dalian) Diesel Engine Co., Ltd., Wuxi Diesel Engine Factory, Dongfeng Chaoyang Diesel Engine Co., Ltd., Guangxi Yuchai Machinery Co., Ltd., Kunming Yunnei Power Co., Ltd., Weichai Power Co., Ltd., Anhui Quanchai Power Co., Ltd. and Changchai Co., Ltd. of China National Heavy Duty Truck Group Corporation. Over the years, the company has always been committed to the development and revitalization of the national automobile industry, fully implemented the "Made in China 2025" development strategy, accelerated the conversion of new and old kinetic energy, and realized the automation, informatization and intelligent transformation of various processing and assembly links. Intelligent production enterprises. In terms of product quality control, the company has successively passed the certification of ISO9002, QS9000, VDA6.1, ISO/TS16949 quality standard system, ISO14000 environmental management system and OHSAS18000 occupational health and safety management system, laying a solid foundation for building the company into a "world-class qualified supplier of auto parts.