... ;6, line body working procedure choose the brand letter PLC control, security body stable operation; 7, all line body ends ... # 1:60, speed 0- 5 M/minutes adjustable, PLC control, head support using 40 x 40 x carbon steel flat ... path:All line body gas path using four points galvanized control is made, and is divided into the upper, lower, ... ,stop device, each block device with a foot valve switch control.