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发明名称
Improved method of extruding metal tubes
摘要
申请公布号
GB922079(A)
申请公布日期
1963.03.27
申请号
GB19600035472
申请日期
1960.10.17
申请人
KRONPRINZ AKTIENGESELLSCHAFT
发明人
分类号
B21C23/32
主分类号
B21C23/32
代理机构
代理人
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