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发明名称
摘要
申请公布号
JPS5613521(B2)
申请公布日期
1981.03.28
申请号
JP19780024124
申请日期
1978.03.03
申请人
发明人
分类号
B21B1/10;B21B1/16;B21B1/18;B21B27/02
主分类号
B21B1/10
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