BPW Suspension Hangers for semi trailer The suspension is mainly divided into mechanical suspension and air suspension.The mechanical suspension is mainly composed of leaf spring, suspension support , connecting rod and u-bolt. The biggest advantage of this kind of suspension is its low price, good reliability and convenient maintenance. Specifications BPW Suspension Hangers American traielr mechanical suspension 1:thickness 8 or 10mm 2:leaf spring 100mm*12mm-12pcs 3:certificate ISO9001 4.high quality 5:color can be red, black, as your requirement
