gate valves vs ball valves

2:23

17:42

8:12

5:23

8:49

12:17

3:41

14:04

7:01

7:39

9:00

6:23

3:43

1:41

5:35

11:50

5:46

13:21

14:40

3:11

17:30

1:59

3:01

1:56

00:20

14:46

6:14

7:22

2:21

1:39

12:48

8:40

1:25

6:11

4:15

3:57

14:55

5:17

4:18

4:17

1:22

13:33

4:57

5:05

2:44

10:27

7:05

9:18

1:00

00:50

1:39

3:31

3:35

3:26

26:52

00:06

00:27

1:52

4:05

24:52