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发明名称
摘要
申请公布号
JPS573449(B2)
申请公布日期
1982.01.21
申请号
JP19770123839
申请日期
1977.10.15
申请人
发明人
分类号
B22D7/10;B22C3/00;B22D27/06;B22D27/18
主分类号
B22D7/10
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