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发明名称
摘要
申请公布号
JPS527410(B2)
申请公布日期
1977.03.02
申请号
JP19720006215
申请日期
1972.01.17
申请人
发明人
分类号
B22D7/04;B22D11/04;B22D11/041;B22D23/10;C21C5/56
主分类号
B22D7/04
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