... 3.used for food,medicine,chemical,etc auto vacuum packing machinery type: vacuum machine Technology SpecificationsModelDZL420Width Of Film(mm)393Width ... Dimensions(mm)6636×1040×1756 DZL Series Automatic Thermoform Vacuum Packaging Machine include two standard models,which are ... the tray which filled with product into vacuum chamber and proceed vacuum and sealing process, agter accomplsih sealing and ...