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经营范围
发明名称
Procédé pour l'obtention d'ébauches pour laminoirs, en particulier de pains tubulaires obtenus d'après le procédé de coulée par extrusion pour la fabrication de tubes sans soudure
摘要
申请公布号
FR1070324(A)
申请公布日期
1954.07.22
申请号
FRD1070324
申请日期
1953.02.04
申请人
RHEINISCHE ROHRENWERKE AKTIENGESELLSCHAFT
发明人
分类号
B21F99/00
主分类号
B21F99/00
代理机构
代理人
主权项
地址
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