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发明名称
NARROW GAP WELDING APPARATUS AND METHOD
摘要
申请公布号
GB1492226(A)
申请公布日期
1977.11.16
申请号
GB19750021557
申请日期
1975.05.20
申请人
BABCOCK & WILCOX CO
发明人
分类号
B23K9/02;B23K9/133;B23K9/173;(IPC1-7):B23K9/16
主分类号
B23K9/02
代理机构
代理人
主权项
地址
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