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发明名称
摘要
申请公布号
JPH0618671(Y2)
申请公布日期
1994.05.18
申请号
JP19890030370U
申请日期
1989.03.16
申请人
发明人
分类号
B21J5/06;B21J5/02;B21J13/02;B21K1/30;(IPC1-7):B21K1/30
主分类号
B21J5/06
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