... constant temperature, a dehydrating device, an air-drying device, a zipper sealing device, an automatic winding device, etc.4. Moulds have advantages ... to fix them to the machine.Characteristic:JL45B is an improved type of JL45A, mainly for high-end user.On the basis ... X H)9350 X 1300 X 2000 MM JL-45 Zipper Extruder bag making machine