PE塑料收缩率及塑料知识以下是塑料的收缩率,单位(%)PP(1.0-2.5)PMMA(0.1-0.4)PC(0.5-0.7)PA6(0.5-1.5)PA6-GF(0.4-0.6)PA66(0.8-1.5)PA66...