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发明名称
STRUCTURE OF BUTT WELDED JOINT OF PIPE
摘要
申请公布号
JPS5770097(A)
申请公布日期
1982.04.30
申请号
JP19800145802
申请日期
1980.10.20
申请人
HITACHI SEISAKUSHO KK
发明人
SHIMANUKI SHIZUKA;MASAOKA ISAO
分类号
B23K33/00
主分类号
B23K33/00
代理机构
代理人
主权项
地址
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