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经营范围
发明名称
NARROW GAP WELDING METHOD
摘要
申请公布号
JPS6254577(A)
申请公布日期
1987.03.10
申请号
JP19850192492
申请日期
1985.08.30
申请人
HITACHI ZOSEN CORP
发明人
KATSUTA MINORU
分类号
B23K9/16;B23K9/167;B23K9/26;B23K9/29
主分类号
B23K9/16
代理机构
代理人
主权项
地址
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