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2.聚丙烯薄膜(PP) 概况自从1955年在意大利发明,1957年由MONTE CATINI公司正式投产以后,聚丙烯已成为“梦想中的塑料”,广泛使用于纤维、薄膜和各种成型产品中,并确保了泛用
2. Polypropylene Film (PP) Overview Since it was invented in Italy in 1955 and formally put into production by MONTE CATINI in 1957, polypropylene has become “a dream plastic” and widely used in fibers, films and various shaped products. And to ensure universal