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发明名称
摘要
申请公布号
JPS526850(B2)
申请公布日期
1977.02.25
申请号
JP19730059123
申请日期
1973.05.25
申请人
发明人
分类号
B22D25/02;B22C7/00;B22C9/02
主分类号
B22D25/02
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代理人
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地址
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