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求助:美國圖紙上有個孔標注為:#29 DRILL THRU 請問誰知道#29對應多大的鉆頭,? |
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,,浙公網(wǎng)安備33038202004372號 )
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