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发明名称
PREVENTION OF TERMINAL END DEFFICIENCY FORMED DURING WELDING PIPE JOINT PORTION BY PLURAL WELDING BARS
摘要
申请公布号
JPS53103969(A)
申请公布日期
1978.09.09
申请号
JP19780012246
申请日期
1978.02.06
申请人
MANNESMANN AG
发明人
PAURUUERITSUKU HENE;MARIANNMIHIYAERU MURUJIKU
分类号
B23K9/02;B23K9/025
主分类号
B23K9/02
代理机构
代理人
主权项
地址
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