... gauge, and antiseptic treat with special fiberglass inner.Duct system: inhibited line pipe, valve and fitting, replaceable filter ... slope lateral wall, overhead mixer, cleaning door.Feeding system: continuing screw distributor, ON/OFF and back-gating, the 2 ... plunger pump droved filler feeding system, additive pump; triple gear pump droved clutch shaft, mixer, screw distributor of paving hopper. ...