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