Because of combined properties, PET is widely used in synthetic fibre, film and engineering plastics etc.
由于聚酯综合性能优良，它广泛用于合成纤维，薄膜和工程塑料等领域。
2
Waterproof coiled materials of SBS are a flexible felt of polyester fibre as casing, SBS modified asphalt as coating and polyethylene film as antiseizing separation layer.