... friendly, energy saving 1, the working principle of: hanging drying tunnel using far infrared heating tube heating, the electrical energy ... , slip speed, safe, convenient, environmentally friendly, energy saving. 2, drying oven tunnel main components and price Diameter size: width 1400mm ... , c, drive 1 set, d, 1 set of tensioning device. e, Meng steel forming curved track f, hanging hook turn5 ...