2.2 缩略语

BOPP(biaxially orientation polypropylene)  双向拉伸聚丙烯

BOPET(biaxially orientation polyethylene terephthalate) 双向拉伸聚酯

BOPA(biaxially orientation polyamide)  双向拉伸聚酰胺,又称双向拉伸尼龙

MDO(machine drection orienter)  纵向拉伸

TDO(transverse direction orienter)  横向拉伸