现有的型号 单位（mm）
200x400x20
300x500x30
350x350x30
315x500x30
350x500x30
430x500x30
450x500x30
550x550x30
800x940x30
850x850x30
1050x500x30
1050x550x30
1200x650x30
1230x500x30
1230x600x30
1250x600x30
1300x500x30
1300x600x30
可以加工订做各种异形雨水箅子
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