... torsional vibration3.used for yutong,kinglong,higer,golden dragon bus drive shaft3.Precisely Heat-treatment for better mechanical ruggedness ... .Application:1. Yutong, kinglong, higer, golden dragon, JAC, zhongtong, bus.2. Steyr , Dongfeng, FAW and other truck.Our service:1 ... company specializing in yutong , kinglong, higer, golden dragon bus parts for several years . Such as air spring, gear ...