It is a new kind of heat-shrinkable packaging which is mainly made from polyethylene terephthalate. The purpose and usage are same with PVC heat shrinkable tube. Nevertheless, PET possesses the characteristics such as high temperature resistance, high insulation, high mechanical strength that PVC can not compare with. PET material is a new type of environment friendly material, non-toxic, tasteless, burning does not pruduce harmful gases, waste recycling and doesn’t pollute the environment. It is the ideal type of packaging material that is in line with EU ROHS directive.