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发明名称
Insert-steel rod and method thereof
摘要
申请公布号
KR100877240(B1)
申请公布日期
2009.01.07
申请号
KR20070055652
申请日期
2007.06.07
申请人
发明人
分类号
B21C1/00;B21C3/02
主分类号
B21C1/00
代理机构
代理人
主权项
地址
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