... HOWO, STEYR,STEYR-KING 4twelve speed gear-box Heavy Duty TruckWe supply heavy duty truck, our brand is sino-truck. We have ... of worldwide advanced parts and components of heavy duty trucks, Steyr series heavy duty truck featuring modularization, seriati on, strong power ... absorption and adoption of the latest technology of European heavy duty trucks, CNHTC developed with its own intellectual property ...