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发明名称
Tube equipment for obtaining by extrusion tubes of constant interior diameter and variable exterior diameter
摘要
申请公布号
GB738762(A)
申请公布日期
1955.10.19
申请号
GB19520024454
申请日期
1952.09.30
申请人
COMPAGNIE GENERALE DU DURALUMIN ET DU CUIVRE
发明人
分类号
B21C25/08
主分类号
B21C25/08
代理机构
代理人
主权项
地址
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