Longyao Changjian Auto Parts Co.,Ltd is a professional founder manufacturing Axles, Suspensions ,Brake Drum, Wheel Hub, Brake Shoes and other auto spare parts for semi-trailer in China. Its predecessor was Shuangfei Heavy-truck Parts Factory. At present , we can annually output 50,000 pcs semi-trailer axles , 20,000 sets suspensions, 8,000 ton brake drum and 2,000ton wheel hub.