China Crawler conveyor / belt self unloading dump trailer . China 3 axles Crawler conveyor self unloading dump trailer. This crawler conveyor/belt unloading is the new type/model we designed for the transport (loading/unloading) of Lime, lump ash, gravel, sand, clay, gypsum, grains, bulk feed, .. 3 axles crawler conveyor style self unloading dump trailer, the …Web