Changtong Machinery Limited is an engineering specialist with main focus on the manufacturing and supplying of various technological products for heavy & light trucks, commercial vehicles and mining machinery, such as axle shafts, brake drums, steering knuckles, wheel hubs, balance suspensions, crown gear & pinions, spiders, fasteners (bolts), and steering arms etc; Moreover, we have been supplying components for auto racing cars, like aluminum forgings (aluminum hubs) and splined shaft etc. 
- Our factories are located in Jiangxi, Zhejiang, Henan and Shandong province with large production capability. 
- Our forging products range from 0.3-1500Kgs, with various forging materials, like steel, aluminum alloy, and copper; and the casting covers iron casting and investment casting with the weight of 0.1-2500Kgs, with casting materials of steel, ductile iron, aluminum alloy, magnesium alloy and copper. 
- Through years successful operation, Changtong has built a complete supply system from the sampling, production and quality control as well as the after-sales service and gains more attentions from the overseas customers in different fields. 
- We committed ourselves to be your trustable partner and best OEM supplier in China.