"Hydraulic" Smart Security
For tunneling transport environments vary greatly, harvester road to artificial track of physical exertion, and insecurity issues, through the convening of "little Zhuge", sizes, options identified has developed "hydraulic device" the coup. By the technical research team Guo Hongbo, person in charge, with hydraulic transmission principles, disused anchor cable tie 5x5cm angle iron and steel combination was made by.
"The device is lightweight, only two people with ' top ' elevation harvesters can be complex with a crowbar tip a few tracks. ”