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发明名称
摘要
申请公布号
JPS5753150(B2)
申请公布日期
1982.11.11
申请号
JP19770083156
申请日期
1977.07.12
申请人
发明人
分类号
B21D43/00;B07C5/06;B21D45/00;B30B15/32
主分类号
B21D43/00
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代理人
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