1,ISO/TS 16949:2009 2,Match type:ZF transmission 3,For Sinotruk,Howo,Steyr,Hongyan,North Benz,Mercedes Benz, ... etc. 4,OEM parts Item Synchronizer ring (for high-low speed ... adopt ZF Technology which is German gear standard. We supply transmission gearbox parts for Howo, Steyr King, Steyr, Mercedes Benz, North ...