trailer 1.30t-50t towing mass 2.6X4 3. New brand trailer Truck modelSTQ4250L7Y9S3Approach angle25° ... :12.10,9.41,7.31,5.71,4.46,3.48,2.71,2.11,1.64,1.28,1.00, ... alloy Exhaust systemMuffler, anti-scald board Electrical system24V Voltage,2×12V/165Ah Battery Brake system1.Service brake:dump-type air ... brake,2.Parking brake:spring type air shut-off brake,3. ...