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REFRACTORY COMPONENTS
摘要
申请公布号
PT75865(A)
申请公布日期
1982.12.01
申请号
PT19820075865
申请日期
1982.11.17
申请人
BRITISH STEEL CORPORATION
发明人
分类号
B22D41/28;(IPC1-7):B22C/
主分类号
B22D41/28
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