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发明名称
MANUFACTURE OF ELECTRIC-RESISTANCE-WELDED TYBE AND DEVICE THEREFOR
摘要
申请公布号
JPH04294818(A)
申请公布日期
1992.10.19
申请号
JP19910060077
申请日期
1991.03.25
申请人
NIPPON STEEL CORP
发明人
KIMIYA YASUO;SUMIMOTO DAIGO;HANEDA KENJI
分类号
B21C37/08;B23K13/00
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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