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发明名称
摘要
申请公布号
JPS5422178(B2)
申请公布日期
1979.08.04
申请号
JP19750060085
申请日期
1975.05.19
申请人
发明人
分类号
B22D19/16;B21B27/00;B22D13/02
主分类号
B22D19/16
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代理人
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地址
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