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发明名称
APPARATUS FOR FORMING THE ROOT OF CIRCUMFERENTIAL WELD
摘要
申请公布号
SU1593872(A1)
申请公布日期
1990.09.23
申请号
SU19894639842
申请日期
1989.10.19
申请人
VOROSHILOVGRAD MASHINOSTR
发明人
KALYUZHNYJ VALERIJ V,SU
分类号
B23K37/06
主分类号
B23K37/06
代理机构
代理人
主权项
地址
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