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一工件,,外協(xié)廠家做的調質處理,,調質后工件魏彎曲8毫米 |
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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,,浙公網安備33038202004372號 )
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