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发明名称
MULTILAYER HELICAL SEAM TUBE
摘要
申请公布号
SU1733816(A1)
申请公布日期
1992.05.15
申请号
SU19894793037
申请日期
1989.12.29
申请人
TSELINOGRADSKIJ INZH-STR INSTITUT
发明人
NURKIYANOV ADYLKHAN M,SU;KIM ADOLF YU,SU
分类号
F16L9/16
主分类号
F16L9/16
代理机构
代理人
主权项
地址
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