... axle,4 wheel, rear lights,self-unloaing, pneumatic brake tractor trailer,with CE,two axles,4 wheels,payload from 1 to ... 10 tons.self-discharge,good quality and high efficiency.tractor trailer, trailed by tractor, applicable for plains, mountains, wetlands, knap, rural ... .5/80-15.3 10PR / 4 8.25-16 / 4 7.50-16/4unloading form3-way self-dump hydraulic self-dump,left ...