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发明名称
摘要
申请公布号
JPS4724642(Y1)
申请公布日期
1972.08.03
申请号
JP19700130119U
申请日期
1970.12.22
申请人
发明人
分类号
(IPC1-7):C21C7/10;B22D41/00;C22B9/04
主分类号
(IPC1-7):C21C7/10
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