... to truck height, or changed to electricity power. And the ramp can be operated by single person easily, in this way ... work and promoting work efficiency.The regular model of this ramp is: width-2.08m, length-11m, adjusting height range-1m ... material handling, warehouse, wharf, logistics center working place.Key words: yard ramp, mobile yard ramp, dock leveler, mobile dock leveler. movable dock ramp