... brand Dalta InverterReducer: 330 typeBarrel: groove barrel, feed section use water to cool, 3 districts heating three sections of cold ... brand Taida InverterReducer 350 typeBarrel: slotting barrel, feed section use water to cool, 3 Districts heating three sections of cold ... stepless adjustable. To overcome the problems of different size of two side of the film roller, elastic sides etc, to ensure a ...