... library, archive and morgue,save floor area, protect fil movable compactor (movable compact cabinet, mobile bookshelf, filing cabinet), novable filing cabinet ... gear, 32 teeth gear, 16 teeth gear, 20 teeth gear for various terminals; Tension controller:Industrial wheel castor, diameter, 127mm;Anti ... -bay, 7-bay, 8-bay are available. high quality movable compactor for files