auto changeover switch ats connection in distribution board

5:30

19:31

کوتاه

کوتاه

4:19

1:01:11

29:32

1:10

6:41

6:07

3:57

4:01

6:43

4:18

13:48

2:55

2:11

3:31

9:19

2:19

3:08

5:42

13:13

1:15

2:15

کوتاه

1:10

5:37

3:41

4:34

3:27

1:42

کوتاه

6:39

15:44

کوتاه

7:02

3:18

1:52

5:49