文件类型:PDF文档
文件大小:850K
The present invention provides a metal passivator/trap comprising a rare earth oxide dispersed on a matrix containing a calcined hydrous kaolin.
0下载134浏览297K
0下载113浏览450K
0下载346浏览531K
0下载326浏览882K
0下载215浏览1143K
0下载277浏览225K