规格

D

D1

D2

d

RX

H

B

A

L

H

20×1/2M

27

19.3

19.5

15

1/2

15

12

13

360

27.5

20×3/4M

27

19.3

19.5

17

3/4

15

14

15

65

27.5

25×1/2M

33.5

24.3

24.5

15

1/2

17

12

13

64

30

25×3/4M

33.5

24.3

24.5

20

3/4

17

14

15

69

30

25×1M

33.5

24.3

24.5

22

1

17

16

17

73

33.5

32×3/4M

42

31.3

31.5

20

3/4

19

14

15

73

33

32×1M

42

31.3

31.5

25.5

1

19

16

17

77

37

40×11/4M

51.5

39.2

39.4

34

1′/4

21

18

19

92

42

40×11/2M

51.5

39.2

39.4

37

1′/2

21

20

19

98

45

50×11/2M

63.5

49.2

49.4

39.5

1/2

24

20

19

104

50

50×2M

63.5

49.2

49.4

47

2

24

20

24

116

58

50×2M

79

62.2

62.4

51

2

28

20

24

124

64.5