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发明名称
摘要
申请公布号
JPS5651862(B2)
申请公布日期
1981.12.08
申请号
JP19770020030
申请日期
1977.02.23
申请人
发明人
分类号
B22D13/02;B22D13/10;C21C1/10
主分类号
B22D13/02
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代理人
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地址
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