Datong gear , datong gearbox parts, datong transmission parts, DC gearbox parts, datong parts. We supply DC series gearbox and parts made by China National Heavy ... Bus groups.Products series: DC6J70T , DC6J80T , DC6J85T , DC6J90T , DC7J100T , DC7J110T , DC7J120TDC12J150T , DC12J180T ,HW18709 , HW18710 , 14710, 19710 , 13710 , 12706 etc Gearbox assembly and ...