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经营范围
发明名称
Welded joint between tubes with an internal lining
摘要
申请公布号
GB898640(A)
申请公布日期
1962.06.14
申请号
GB19610000197
申请日期
1961.01.03
申请人
GROSSROHRWERK MANNESMANN-HOESCH G.M.B.H.
发明人
分类号
B23K9/028;F16L13/02
主分类号
B23K9/028
代理机构
代理人
主权项
地址
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