A呼称

B呼称

D

8

'1/4

19.0

10

'3/8

22.0

15

'1/2

27.0

20

'3/4

33.0

25

1"

40.0

32

1"1/4

49.0

40

1"1/2

55.5

50

2"

68.0

65

2"1/2

83.0