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发明名称
FIRST WELDING DEVICE FOR STEEL PIPE CONNECTOR
摘要
申请公布号
KR100227036(B1)
申请公布日期
1999.10.15
申请号
KR19970043612
申请日期
1997.08.30
申请人
DONG-BU STEEL INDUSTRY CO.,LTD
发明人
SONG, WAN-SUP
分类号
B23K37/02;(IPC1-7):B23K37/02
主分类号
B23K37/02
代理机构
代理人
主权项
地址
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