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发明名称
PREVENTING METHOD FOR CRACK INITIATION OF WELDING HEAT AFFECTED ZONE
摘要
申请公布号
JPS5441244(A)
申请公布日期
1979.04.02
申请号
JP19770107706
申请日期
1977.09.09
申请人
BABCOCK HITACHI KK
发明人
NOSAKA TADASHI
分类号
B23K31/00
主分类号
B23K31/00
代理机构
代理人
主权项
地址
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