... in different shape through changing moulds,.3. This machine consists of a main extruder, mould forming, forming through cooling ... water at a constant temperature, a dehydrating device, an air-drying device, a zipper sealing device, an ... On the basis of JL45A, JL45 B increases a cooling water device to form the zipper at constant ... X 2000 MM JL-45 Zipper Extruder bag making machine