polypropylene oxalate

例句：

1. 1. This product is made from polypropylene and contains a special additive that helps to improve its strength and flexibility.
   这种产品由聚丙烯制成，并含有一种特殊添加剂，有助于提高其强度和柔韧性。
2. 2. Polypropylene oxalate is commonly used in the production of plastics, as it can be easily processed and molded intovarious shapes.
   聚丙烯酸盐常用于塑料生产中，因为它易于加工成型，可以制成各种形状。
3. 3. In some cases, polypropylene oxalate may be used as a preservative or antimicrobial agent in food packaging materials.
   在某些情况下，聚丙烯酸盐可能被用作食品包装材料的防腐剂或抗菌剂。