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Company Profile

Longkou Jinzheng Machinery Co., Ltd. was jointly established by its predecessor Longkou Zhengzhuang Casting Factory (founded in September 1993) and a Korean company in July 2002. Our company is located in beautiful coastal city Longkou, 10km away from Longkou Port, 80 km from Yantai Port and 80 km from Laishan Airport, adjacent to Qingdao in the south and Dalian in the north. Our advantageous geographical location creates broad development prospects.


With an area of 100,000 square meters, a construction area of 80,000 square meters, an investment 350 million yuan, fixed assets of 150 million yuan and 1,500 employees, we have been engaged in the development, casting, processing and marketing of auto brake discs, brake hubs, water pumps, oil pumps and air pumps, and invested 10 million yuan in ABS brake discs and hubs. Our products include over 2,000 varieties and are available in America, Europe, Western Europe, Korea, Japan, Canada, South Africa, Taiwan, and so on. What’s more, we boast a powerful technology team, rich development and manufacture experience, advanced computer auxiliary design and manufacture software and about 410 production and testing equipment, including 350 high-precision automated production equipment.

We passed ISO/TS16949 Quality Management System certification in 2005, with a view to make high-quality products in the quality policy of “Technical Innovation, Quality First; Your Demands, Our Pursuit”.

In the principle of “Solidarity, Pragmatism, Innovation, Development” and the tenet of “Eternal Progress, Customer Supremacy”, we are making great efforts to become a famous enterprise with scientific technologies and human resources as the core and development and marketing as the impetus. We hope to establish equal partnerships with global customers and explore a new development way for auto parts industry. Welcome to contact us.