... Capacity:30 ton 5.Timely Parts Supply SINOTRUK 6*4 heavy duty truck/ tractor truck for sale ModelZZ4255N2945wDrive Type6×4EngineWD615.69E, ... ten forward gears and two reverse, and the first shift gear ratio:14.28, torque:1500Nmsynchromesh, small ratio grade difference and ... leading trading company which specializes in exporting all kinds of heavy duty trucks,such as tractor truck,dump truck,cargo truck, ...