Ду

D1

L, мм

8

1/4"

18

10

3/8"

22

15

1/2"

25

20

3/4"

30

25

1"

35

32

1"1/4

38

40

1"1/2

38

50

2"

45

65

2"1/2

55

80

3"

60

100

4"

70