Section steel butt joint welding backing,申请号KR20120007321U-传众专利搜索

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发明名称	Section steel butt joint welding backing
摘要
申请公布号	KR20140001195(U)	申请公布日期	2014.02.27
申请号	KR20120007321U	申请日期	2012.08.17
申请人		发明人
分类号	B23K9/02;B63B9/06	主分类号	B23K9/02
代理机构		代理人
主权项
地址

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