hydrocarbon chemical classification

7:33

1:30

2:28

4:36

1:17

1:23

16:38

2:40

3:13

1:02

3:04

کوتاه

26:42

2:16

5:50

1:56

5:16

2:16

13:21

1:45

3:53

6:28

4:33

2:19

4:13

2:45

4:48

1:51

9:57

9:18

20:40

10:01

8:47

14:08

1:51

1:45

1:36

کوتاه

1:48

1:24