翻譯成英文是:What's the opp bag?
OPP袋子是拉伸性的聚丙烯,屬於塑料的壹種,其實就是塑料袋,其特征是:容易燃燒,火焰情況:熔融滴落,上黃下藍,離火後煙少,繼續燃燒。
opp是Oriented polypropylene的縮寫形式,
oriented polypropylene
[詞典] 定向聚丙烯;
[例句]Production and process conditions optimization for special resin biaxially oriented polypropylene
雙向拉伸聚丙烯專用料的生產及工藝條件優化