20-cm管 （255）

29 secs

6 mins 4 secs

13 mins 30 secs

1 min 35 secs

11 secs

12 secs

1 min 30 secs

25 secs

31 secs

14 secs

1 min

1 min 37 secs

12 mins 4 secs

1 min 11 secs

2 secs

1 min 18 secs

8 mins 1 sec

14 secs

39 secs

17 mins 31 secs

2 mins 19 secs

52 secs

5 mins 18 secs

6 secs

11 mins 16 secs

1 min 37 secs

59 secs