Plastic Zipper Extruder Machinery This machine is suitable for LDPE and it ... ,mould forming,forming through cooling water at a constant temperature,a dehydrating device ,a air-drying device,a zipper sealing device,an automatic winding device ... to make zippers the quality and the output of the zipper can be improved.5, Main technical parametersModelJL-45ZMaterialLDPE,PPSpeed10-40 ...