Соляная кислота. Травим цинком.
В этом видео. Делаем паяльную кислоту сами. Травим цинком. Где взять цинк тут
1 month ago 00:17:04 1
1 month ago 00:56:39 1
1 month ago 00:03:46 1
1 month ago 00:11:23 1
2 months ago 00:06:14 1
2 months ago 00:04:34 1
2 months ago 00:14:40 1
2 months ago 00:10:48 1
2 months ago 01:19:01 1
2 months ago 01:13:57 1
2 months ago 00:18:05 1
2 months ago 00:09:41 1
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2 months ago 00:04:59 1
2 months ago 00:00:00 1
2 months ago 00:08:03 1
2 months ago 00:08:03 1
2 months ago 00:26:01 1
2 months ago 00:10:32 1
2 months ago 00:02:00 1
2 months ago 00:22:39 1
2 months ago 00:11:19 1
2 months ago 00:13:21 1
3 months ago 00:11:34 1
