30t-40t 3axle low bed Semitrailer 1,military factory,state enterprise 2,technology,good price 3,3C certificate All technical specification of low bed semi-trailerThe breif introduction of 30-40tons 3 axle low bed Semitrailer Low bed semitrailer composed of load plateform,climbing ladder,running gear(including axles,tyres,landing gear,etc) This type of semitrailer machinery and equipment,such as ...