Special legs (L shape edge leg): L shaped support legs and side walls attached on the support of 3mm thick cold rolled steel plate; coarse thread screw diameter 20mm, length 130mm + 40mm adjustment, tight double nut lock function; under the support of seamless steel tube, the wall thickness of 2.5-3.5mm, a middle protrusion, single leg bearing > 2T；

        Special legs (high school on the shore): by supporting high-quality cold-rolled steel plate stamping 3mm thick, the supporting ears are arranged under the automatic telescopic device for automatic control of the longitudinal slot floor, leg lateral spacing connected to each other through a small beam, ears on support for a shop floor below 600 electrostatic.