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发明名称
Device for preventing oxidation of welding
摘要
申请公布号
KR200437783(Y1)
申请公布日期
2007.12.26
申请号
KR20060029069U
申请日期
2006.11.06
申请人
发明人
分类号
B23K31/02;B23K37/00
主分类号
B23K31/02
代理机构
代理人
主权项
地址
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