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发明名称
PRODUCTION OF WELDED PIPE
摘要
申请公布号
JPS56119692(A)
申请公布日期
1981.09.19
申请号
JP19800023895
申请日期
1980.02.26
申请人
SUMITOMO METAL IND
发明人
HIRAOKA NOBUAKI;SHINTANI SUSUMU
分类号
B23K9/025
主分类号
B23K9/025
代理机构
代理人
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