2722| 4
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哪位見過這種形狀截面的型鋼? |
點評
是太小了,,,,8mm壁厚不容易軋出幾個槽。
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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