Established in2004, Shandong Zhengyang Machinery Co。, Ltd is a professional manufacturer and exporter that is concerned with the design, development and production of semi-trailer suspension system and axle series。 With an annual output of 60000 axles, 60000 suspensions, Our products are sold toShandong,Shanxi,Hebei,Henan,Wuhan,Xinjiang,Anhuiand other provinces inChina。 We have the right to import and export, and our products are being exported to 32 countries in North America, South America, the Middle East, Southeast Asia,Africa。 Located in Liangshan Industrial Zone, Zhengyang was evaluated as the National High-Tech Enterprise In 2014, and our trademark 。。。