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大家好!熱處理工藝中,,C56、G42,、G52,、D0.5-900、T215,、T235,、C42各是什么含義? |
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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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