Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
Ordinary PET is a crystalline polymer. After the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat sealed, it will produce shrinkage deformation. Therefore, ordinary PET film does not have heat sealing performance.
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