Polyester film modified with NG had a shrinkability of more than 35% after the treatment in hot air.

经（NG）改性的聚酯薄膜在热空气中的热收缩率超过35 % ；

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Polyester film modified with NG had a shrinkability of more than 35% after the treatment in hot air.

经（NG）改性的聚酯薄膜在热空气中的热收缩率超过35 % ；

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