16554| 19
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比較304,、2Cr13,、17-4的抗腐蝕和抗銹能力 |
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點評
不好意思,,我對鈍化也不是很了解
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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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