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Located in Liangshan Industrial Zone, Zhengyang was evaluated as the National High-Tech Enterprise In 2014, and our trademark was rated as Shandong Famous Brand. We have built an engineering technology research center for transport vehicle suspension system of JiningCity.Zhengyang Machinery, a Professional manufacturer of Trailer Axle, suspension and brake drum with 20 years' experience and 300+ employees.

Our company has 12 items of National patent technology, and undertook a number of provincial and municipal projects, A number of our products were rated as municipal and county science and technology progress award. In March 2016, as the sponsor, Zhengyang united 27 enterprises with Shandong University of Science and Technology, Shandong University of Technology, Shandong Jiaotong University and other five universities, to set up a intellectual property protection alliance for special vehicle industry in Shandong province , playing a great role in shandong special vehicle industry to promote scientific and technological innovation, intellectual property protection. There are more than 100 sets variety of production and processing equipments in our company, including suspension automatic welding system which save human resource and improve production efficiency, while significantly improve products quality. Zhengyang has passed ISO9001, ISO140001, OHSAS18001 management system certification and the standardization of intellectual property management certification. We have integrated testing equipments in a testing center, with advanced testing methods, we can control every link from raw materials, semi-finished products to finished products, to ensure that our customers can get consistent quality products.