2694| 4
|
[研讨] 国产TDI加成物 与 进口三聚体异氰酸酯 |
| ||
| ||
| ||
QQ397974983,手机13920650977
|
||
| ||
|联系我们|Archiver|手机版|小黑屋|联众涂料网 ( 沪ICP备11020344号-1 )
GMT+8, 2024-11-2 01:30 , Processed in 0.136943 second(s), 30 queries .
Powered by Discuz! X3.1
© 2001-2013 Comsenz Inc.