... tension pay-offmechanical self-regulating damping, break-off self, with bottom plate dolly, change H-Wheel labour saving and handy.2Dia270 ... guard-against-wire- fall-off device5Hot water scrubbing tankOne3M long, with tubing pump, air blast device, heat by electricity, capacity ... , anode cathode alternately set, pole plate districts isolated by inside PP small bath, with warm-keep layer, twin axial flow ...