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发明名称
STEEL PIPE WITH A FUNCTION OF CONVEYING 800bar HIGH-PRESSURE CONCRETE AND THE METHOD OF MANUFACTURING THE SAME
摘要
申请公布号
KR101197444(B1)
申请公布日期
2012.11.06
申请号
KR20110006512
申请日期
2011.01.21
申请人
发明人
分类号
B21C37/08;B21D5/12;C21D9/08;C22C38/04
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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