... gauge, and antiseptic treat with special fiberglass inner.Duct system: inhibited line pipe, valve and fitting, replaceable filter ... : larger angle slope lateral wall, overhead mixer, cleaning door.Feeding system: continuing screw distributor, ON/OFF and back-gating, ... thermometer, and cleaning door.Filtering: oil box filter, reflux line.Pump: plunger pump droved filler feeding system, additive pump; ...