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发明名称
PROCESSO E PUNCAO PARA CONFORMACAO DE EXTREMIDADE DE UM TUBO METALICO E TUBO PARA PERMUTADOR DE CALOR
摘要
申请公布号
BR8004636(A)
申请公布日期
1981.02.10
申请号
BR19800004636
申请日期
1980.07.24
申请人
VALEO
发明人
CHARLES COLLGON PIERRE
分类号
B21D41/04;B21D41/02;B21D53/08;F28F9/16;(IPC1-7):B21D19/00;B21D41/00
主分类号
B21D41/04
代理机构
代理人
主权项
地址
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