gas leakage detection and alert system

3:19

3:33

6:41

6:41

6:37

13:08

5:21

1:46

1:16

کوتاه

1:41:06

3:01

5:55

14:20

3:56

3:34

1:16

8:08

9:32

3:20

2:36

1:45

6:49

15:57

17:07

13:02

12:41

9:37

10:38

5:12

7:02

کوتاه

2:49

11:58

10:56

57:55

3:37

6:28

3:52

28:01