What is the packing material?

What is the packing material?

  Polythene PE film, Thickness 60-80 Microns. Two different kinds of polythene film for the two packing proposals.

1).Normal Packing Proposal:

  Normal PE film, thickness 60-80 microns, without heat shrinking function 

2) Vacuum Packing Proposal:

  Heat-shrinking PE film, thickness 60-80 microns for vacuum packing. The heat-shrinking film should be able to continuously working ten seconds under 180-200℃.(degree celsius)