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发明名称
WELDING APPARATUS BY INDUCTION HEAT FOR TUBE
摘要
申请公布号
KR810000844(Y1)
申请公布日期
1981.07.11
申请号
KR19810003689U
申请日期
1981.05.23
申请人
SUNGWON STEEL PIPE CO LTD
发明人
KIM SEON HAN
分类号
B21C37/08;(IPC1-7):B21C37/08;B23K9/22
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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