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发明名称
摘要
申请公布号
JPH04504085(A)
申请公布日期
1992.07.23
申请号
JP19900504384
申请日期
1990.02.16
申请人
发明人
分类号
B22F7/00;B22F7/04;B23B27/14;C23C16/30;C23C30/00
主分类号
B22F7/00
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