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階梯軸在直徑相差不大時,應(yīng)采用的毛坯是什么? |
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點評
應(yīng)力大和重要場合就需要鍛造,還有工藝需要的場合
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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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