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发明名称
摘要
申请公布号
JPS61127842(U)
申请公布日期
1986.08.11
申请号
JP19850007330U
申请日期
1985.01.24
申请人
发明人
分类号
B21J9/06;B21D41/00;B21J7/18;B21K21/12;(IPC1-7):B21J7/18
主分类号
B21J9/06
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代理人
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