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规格  Model/mm	带宽 Wide /mm	带宽  Wide/mm
8-12	9	12
10-16	9	12
12-20	9	12
16-25	9	12
16-27	9	12
20-32	9	12
25-40	9	12
32-50	9	12
40-60	9	12
50-70	9	12
60-80	9	12
70-90	9	12
80-100	9	12
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