.

Polyester film is a high‑performance polymer film that has increasingly won favor among consumers thanks to its excellent overall properties. However, due to domestic production capacity and technological levels still falling short of market demand, imports remain necessary for certain applications.

Polyester film is a high‑performance polymer film that has increasingly won favor among consumers thanks to its excellent overall properties. However, due to domestic production capacity and technological levels still falling short of market demand, imports remain necessary for certain applications.