Ду

A

C, мм

B, мм

6

1/8"

17

27

8

1/4"

19

30

10

3/8"

21

34

15

1/2"

26

39

20

3/4"

30

49

25

1"

33

52

32

1 1/4"

46

60

40

1 1/2"

47

65

50

2"

56

76

65

2 1/2"

69

93

80

3"

78

107