Trailer suspension,used semi-trailer ,high strength material for longer life at higer loads ... suspension model JSXJ2-1360-470-142Installation height:empty loading 170mm,full loading 440mmSpring:90x13mm,14pcsWeight:800kgcapacity:3x16tonsJinsheng axle CO.,LTD ... professional manufacturer of axles, suspensions and spare parts for semi-trailer with more than 10 years experiences. Its current annual output ...