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发明名称
BACKING STRIP DEVICE FOR CIRCUMFERENTIAL WELDING OF PIPE
摘要
申请公布号
JPS5592297(A)
申请公布日期
1980.07.12
申请号
JP19790000214
申请日期
1979.01.08
申请人
NIPPON STEEL CORP
发明人
INAMI RIYUUICHI;IMAMURA TATSUMI
分类号
B23K37/06;B23K37/053
主分类号
B23K37/06
代理机构
代理人
主权项
地址
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