It was found that the import polypropylene copolymers were random ethylene and propylene copolymers with long line chain polyethylene.

结果表明，进口共聚聚丙烯涂覆料是含有聚乙烯长直链的乙丙无规共聚聚丙烯。

youdao

It was found that the import polypropylene copolymers were random ethylene and propylene copolymers with long line chain polyethylene.

结果表明，进口共聚聚丙烯涂覆料是含有聚乙烯长直链的乙丙无规共聚聚丙烯。

youdao