double-insertion管 （823） 5

6 mins 12 secs

7 mins 15 secs

12 mins 38 secs

5 mins 10 secs

5 mins 10 secs

8 mins 28 secs

10 mins 24 secs

10 mins 8 secs

10 mins 40 secs

6 mins 5 secs

8 mins 16 secs

12 mins 16 secs

1 min 8 secs

12 mins 22 secs

12 mins 22 secs

12 mins 16 secs

12 mins 10 secs

10 mins 3 secs

12 mins 59 secs

7 mins 10 secs

1 min 8 secs

1 min 10 secs

1 min 11 secs

1 min 32 secs

2 mins 1 sec

28 secs

33 secs