... barrel roller perforating machine, cone roller perforating machine, guide pate perforating machine and three-roller perforating machine, at present, ... and cone roller. Perforating machine scope:Diameter scope:Φ40-250 barrel roll perforating machine.Diameter scope: Φ50-400 ... type or chain-drum.3.Hot roll mill Type: there are automatic rolling machine, continous rolling machine, Accr-roll machine, Assel ...