1/2"

30

18

21.54

21.23

24

19

45

1/2"

3/4"

35

24

26.87

26.57

27

20

50

3/4"

1"

44

30

33.65

33.27

30

22

55

1"

1"

54

38

42.42

42.04

34

24

62

1"

1"

61

45

48.56

48.11

37

25

66

1"

2"

74

56

60.63

60.17

40

30

75

2"

单位为毫米