GB T 37569-2019 热模锻用铜合金棒.pdf

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JB T 12524-2015 热模锻压力机.pdf

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HB 6077-1986 模锻件公差及机械加工余量.pdf

HB 6077-2008 模锻件公差及机械加工余量.pdf

GB T 29532-2013 钢质精密热模锻件 通用技术条件.pdf

GB T 30567-2014 钢质精密热模锻件 工艺编制原则.pdf

GB T 12362-2016 钢质模锻件 公差及机械加工余量.pdf

GB T 12362-2016 钢质模锻件 公差及机械加工余量.pdf

GB T 12362-2003 钢质模锻件 公差及机械加工余量.pdf

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