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摘要
申请公布号
JP3491891(B2)
申请公布日期
2004.01.26
申请号
JP20000391169
申请日期
2000.12.22
申请人
发明人
分类号
E21D9/06;E21D9/08;(IPC1-7):E21D9/06
主分类号
E21D9/06
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