1. Production and market status of ethylene perchloride at domestic and abroad is introduced in this article.
介绍了四氯乙烯国内外生产现状和市场状况。

来自互联网

2. Production and market status of ethylene perchloride at domestic and abroad is introduced in this article.
介绍了四氯乙烯国内外生产现状和市场状况。

来自互联网