Custom shrink film sealing film plastic cap PVC hot shrink film mineral water label

The sealing film is a heat-shrinkable sleeve mark. Also called sealing film. PVC heat shrinkable film is made of one-way (transverse contraction and longitudinal contraction) contraction label, in sufficient liquefied gas, in the gas port and Angle valve on the cover of heat shrinkable sealing film, with steam or boiling water or hair dryer heating moment