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发明名称
TUBE EXTRUSION METHOD
摘要
申请公布号
SU619237(A1)
申请公布日期
1978.08.15
申请号
SU19762406535
申请日期
1976.09.24
申请人
MITROFANOV BORIS N,SU
发明人
MITROFANOV BORIS N,SU
分类号
B21C23/00;(IPC1-7):B21C23/00
主分类号
B21C23/00
代理机构
代理人
主权项
地址
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