upper felt roll Partofthepaper machine Type:1760,2100,2400.3600,4400,5500. Material:Thecoreoftheroller:SeamlesssteeltubeorCastingiron Therollerface:Wrapuptheglue,electroplate,wrapupglassfibrereinforcedplastic,etc. Axlehead:Roundsteel The face length1350-:8000mm The diameter:500-1800mm Balancing speed:1200mm Material:casting of seamless pipe