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发明名称
摘要
申请公布号
JPH0429445(B2)
申请公布日期
1992.05.19
申请号
JP19860172958
申请日期
1986.07.24
申请人
发明人
分类号
B21D7/025;B21D9/01;B21D11/10;B21D11/14
主分类号
B21D7/025
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