1)Gearbox model:S690,S580,5S111GP,5S150GP,S1506 2)synchronizer cone ... SHIELDMaterial20CrMnTiApplicable GearboxGearbox S690,S580,5S111GP,5S150GP,S1506Applicable VehicleHOWO/SINO truck,Datong,Yutong,Merceds-benz,Golden princeCertificateGB/T9001-2008 itd ... us:Tel: 0086-23-68039639Fax: 0086-23-68039623Mob: 0086-13752950918 transmission gearbox syncronizer parts for SINO/HOWO truck manufacturer in China ...