(聚酯)瓶材料中化学惰性
面议
- 北京恒元启天化工技术研究院
- -
- 进口
- -
- 现货
- -
- 0
- 0
Toluene ................................................................ 7.3 ........................... 0.6Phenol......
Toluene ................................................................ 7.3 ........................... 0.6Phenol......