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发明名称
Improvements in or relating to methods of and apparatus for use in the extrusion of tubular parts
摘要
申请公布号
GB836013(A)
申请公布日期
1960.06.01
申请号
GB19560018670
申请日期
1956.06.15
申请人
PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES
发明人
分类号
B21C25/06
主分类号
B21C25/06
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代理人
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