Чистка золота железным купоросом в присутствие азотки.
12 years ago 00:02:14 14
6 years ago 00:02:17 31
10 years ago 00:01:02 36
10 years ago 00:09:13 31
2 years ago 00:00:59 1
13 years ago 00:02:04 2.2K
10 years ago 00:11:03 737
9 years ago 00:02:38 2
6 years ago 02:37:51 5
8 months ago 00:19:09 1
11 years ago 02:31:44 11
2 years ago 00:09:25 1
9 years ago 00:02:32 3
6 years ago 00:08:39 3
10 years ago 00:09:26 21
10 years ago 00:10:01 74
11 years ago 01:57:19 17
10 years ago 00:03:44 2.7K
9 years ago 00:09:36 606
7 years ago 00:03:23 620
9 years ago 00:09:27 469
5 years ago 00:06:00 3
9 years ago 00:19:39 22
8 years ago 00:04:02 21
