参数表
Parameter table

SIZE

Inch

1/2

3/4

1

11/4

11/2

2

21/2

3

4

5

6

mm

15

20

25

32

40

50

65

80

100

125

150

A

22

22

25.2

30

38

48.5

60

76.5

104.5

127.2

152.4

C

36

36

41.5

50.5

52.5

57.5

58.7

69

67

72.5

78

D

32

32

36.7

46.2

53

64

77.5

92.5

-

151

176

L

50.5

51.7

59.5

72

74

82.5

88

99.5

105

112.5

122