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摘要
申请公布号
SU427506(A3)
申请公布日期
1974.05.05
申请号
SU19691364852
申请日期
1969.10.08
申请人
发明人
分类号
B22D27/20;B22D18/04;B22D18/08;B22D27/09;C21C7/10;(IPC1-7):B22D27/10
主分类号
B22D27/20
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