Обслуживание трубопроводов пара и горячей воды
Требования безопасности при обслуживании трубопроводов пара и горячей воды.
Библиотека включает в себя 5 учебных фильмов.
7 months ago 00:02:39 1
8 months ago 00:07:37 4
8 months ago 00:03:02 1
8 months ago 00:30:37 0
8 months ago 00:13:06 0
8 months ago 00:43:24 0
8 months ago 00:06:57 6
9 months ago 00:24:38 0
9 months ago 00:04:57 1
9 months ago 00:03:24 0
9 months ago 00:05:19 1
9 months ago 00:03:06 0
10 months ago 00:01:03 2
10 months ago 00:02:25 0
10 months ago 00:41:00 0
10 months ago 00:03:01 1
10 months ago 00:25:14 0
10 months ago 00:04:38 2
10 months ago 00:01:32 0
10 months ago 00:14:17 1
10 months ago 00:34:55 0
11 months ago 00:14:21 0
11 months ago 00:01:56 0
11 months ago 01:21:10 0
