This one is a 5 axles 130m3 curtain semi trailer, it is equipped with airbag suspension, the front 2 axles can be lift when empty. The whole vehicle has an overall lifting function. If you have more questions or need customized , please feel free to contact us !INCREASE CARGO LOADCAPACITY, LOW CENTEROF GRAVITY, STABLE TRANSPORTATION.CARBON STEELMATERIAL,ALUMINUMALLOY MATERIAL INVISIBLE OR EXPOSED LOCK LEVER ETC.IS OPTIONAL ACCORDING TO CUSTOMER'S REQUIREMENT.INTEGRATED ADVANCEDLOW-ALLOY AXLE BEAMWITH NO WELDINGPOINTS;STRONG CAPACITY AND HIGHSTRENGTH.FUWA,BPW,SAF ETC.IS OPTIONAL.LED MOISTURE-PROOFLAMP TO PREVENT ENSURE VEHICLESHORT CIRCUIT ANDTRANSPORTATIONSAFETY AT NIGHT.CARGO BLOCKING BAFFLEAluminum cargo blocking baffleis, Wooden cargo blocking baffleis is optional.