The upper part consists of telescopic arm, main arm oil cylinder, movable arm bracket, arm bracket oil cylinder, trailer frame, flipping frame, support leg, multi-way directional valve, etc. The telescopic arm has a telescopic function, is equipped with a multi-way valve, has a telescopic arm structure, with hydraulic legs, oil cylinder 175, and the operation mode is manual + wireless remote control operation.
The underground shuttle is flexible and free, made of high-strength materials, with a short wheelbase and heavy-duty version.
