楼主: liuge
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哪种钢材:淬透性好,渗碳处理,渗层1.0-1.2mm,硬度HRC58-62---[请教] |
Re: 哪种钢材:淬透性好,渗碳处理,渗层1.0-1.2mm,硬度HRC58-62---[请教]
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Re: 哪种钢材:淬透性好,渗碳处理,渗层1.0-1.2mm,硬度HRC58-62---[请教]
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Re: 哪种钢材:淬透性好,渗碳处理,渗层1.0-1.2mm,硬度HRC58-62---[请教]
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