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发明名称
METHOD OF PRODUCING ELECTRICALLY WELDED COLD-DEFORMED TUBES
摘要
申请公布号
SU1540889(A1)
申请公布日期
1990.02.07
申请号
SU19874381982
申请日期
1987.11.30
申请人
PERVOURALSKIJ NOVOTRUBNYJ ZAVOD
发明人
KUNIN YAN B,SU;BILINKIS ALEKSANDR I,SU;GAZMAN SOLOMON M,SU;BESSONOV ARKADIJ G,SU
分类号
B21C37/08
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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