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发明名称
Improvements in and relating to processes and apparatus for the manufacture of hollow metal bodies having a thick base, and bodies thus manufactured
摘要
申请公布号
GB740743(A)
申请公布日期
1955.11.16
申请号
GB19500024516
申请日期
1950.10.06
申请人
BARKWAY ENGINEERING COMPANY LIMITED
发明人
分类号
B21C23/14
主分类号
B21C23/14
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