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发明名称
METHOD OF PRODUCING HELICAL WELDING TUBES
摘要
申请公布号
SU1279698(A1)
申请公布日期
1986.12.30
申请号
SU19853936984
申请日期
1985.06.13
申请人
VNI PK I METALL MASHINOSTROENIYA
发明人
IVANOV VYACHESLAV A,SU;IVANOV ANATOLIJ G,SU;ERMOLYUK YURIJ N,SU;ABRAMENKOV VASILIJ N,SU;KASHAPOV ANAS K,SU
分类号
B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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