40tons 3axle low bed Semitrailer 1,military factory,state enterprise 3,3C certificate 4,export 20 country 5,40years experie All technical specification of low bed semi-trailerThe breif introduction of 30-40tons 3 axle low bed Sem itrailer Low bed semitrailer composed of load plateform,climbing ladder,running gear(including axles,tyres,landing gear,etc) This type of semitrailer machinery and ...