... 4.Payload Capacity:30 ton SINOTRUK 6*4 heavy duty truck/ tractor truck(336HP) for sale. ModelZZ4255N2945wDrive Type6×4EngineWD615.69E,HP336 ( Euro ... engine.HP266 (Euro2) -The transmission:HW15710, SINOTRUK 10 speed manual type transmission, ten forward gears and two reverse, and ... trading company which specializes in exporting all kinds of heavy duty trucks,such as tractor truck,dump truck,cargo truck ...