型号
直径
AT474-26
1-15/16"
(49.21 mm)
AT474-26X
1-31/32"
(50.01 mm)
AT474-27
2"
(50.80 mm)
AT474-27X
2-1/32"
(51.59 mm)
AT474-28
2-1/16"
(52.39 mm)
AT474-28X
2-3/32"
(53.18 mm)
AT474-29
2-1/8"
(53.98 mm)
AT474-29X
2-5/32"
(54.77 mm)
AT474-30
2-3/16"
(55.47 mm)
AT474-30X
2-7/32"
(56.36 mm)
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