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发明名称
Устройство дл развальцовки труб в трубных решетках теплообменных аппаратов
摘要
申请公布号
RU1600110(C)
申请公布日期
2006.10.10
申请号
SU19884643152
申请日期
1988.12.09
申请人
发明人
分类号
B21D39/06
主分类号
B21D39/06
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代理人
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