Получение пластмасс на примере фенолформальдегидной смолы
2 months ago 00:34:28 1
2 months ago 00:30:46 1
2 months ago 00:47:58 1
3 months ago 00:01:01 1
4 months ago 02:22:11 1
4 months ago 00:10:04 1
4 months ago 00:09:51 1
4 months ago 00:24:37 1
5 months ago 00:11:40 2
5 months ago 00:08:35 5
5 months ago 00:01:03 1
5 months ago 00:04:57 1
6 months ago 00:16:27 1
6 months ago 00:04:01 1
6 months ago 00:03:30 1
6 months ago 00:28:28 1
6 months ago 00:12:09 8
7 months ago 00:08:09 1
7 months ago 00:03:45 4
7 months ago 00:28:49 1
8 months ago 00:11:36 1
8 months ago 00:10:27 1
8 months ago 01:23:59 1
8 months ago 01:11:33 1
