8963| 32
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給錢的話,別人會不會愿意教我設(shè)計 |
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點評
這個手冊能幫助機械工人了解材料,制圖,鉗工,標(biāo)準(zhǔn)件,計算公式,幾乎機械工人要用到的全有,
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Archiver|手機版|小黑屋|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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