... safe, convenient, environmentally friendly, energy saving 1, the working principle of: hanging drying tunnel ... -quality production of corrugated plate shape, thickness 1.0mm. c, beam forming using 2mm iron d ... b, hanging conveyor track, c, drive 1 set, d, 1 set of tensioning device. e, Meng ... steel forming curved track f, hanging hook turn5, control system Supply line ...