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经营范围
发明名称
AUTOMATIC BUTT WELDING METHOD FOR OBLIQUEECUT PIPE
摘要
申请公布号
JPS5645281(A)
申请公布日期
1981.04.24
申请号
JP19790117859
申请日期
1979.09.17
申请人
NIPPON STEEL CORP
发明人
INAMI RIYUUICHI;ISHIDA YOUICHI
分类号
B23K9/028
主分类号
B23K9/028
代理机构
代理人
主权项
地址
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