... Tractor Truck , Drive form:6x4,wheel form D10.,D12 engine SMARTSHIFT transmission 16 speeds Tubeless tire HOWO A7 6x4 Tractor ... lock,electric window lifter,power mirror Engine SINOTRUK s new D-12 series engine, turbo-charged with inter-cooling;High-pressure ... door lock,electric window lifter,power mirror Engine SINOTRUKs new D-12 series engine, turbo-charged with inter-cooling; High-pressure common ...