
Plastics - Symbols and abbreviated terms Part 1: Basic polymers and their special characteristics - Amendment 1: New symbol ST for syndiotactic
出版:International Organization for Standardization

专家解读视频
Plastics - Symbols and abbreviated terms Part 1: Basic polymers and their special characteristics - Amendment 1: New symbol ST for syndiotactic
出版:International Organization for Standardization
专家解读视频