... of truck piston ring for howo, Steyr. Steyr(the king), and also for the trucks from Shanxi Automobile Group Co.,Ltd. Our company ... well-known heavy duty trucks, such as HOWO, STEYR, STEYR (KING), Gold Prince, HOYUN, HOJUN, HOWO A7, Shanxi D’long F2000 ... develops foreign end customer groups in Asia, Europe, Africa and the Middle East. Our products are exported to more than ten ...