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发明名称
Improvements in the manufacture of spheroidal graphite cast iron
摘要
申请公布号
GB768455(A)
申请公布日期
1957.02.20
申请号
GB19540017462
申请日期
1954.06.14
申请人
REGIE NATIONALE DES USINES RENAULT
发明人
分类号
C21C1/10
主分类号
C21C1/10
代理机构
代理人
主权项
地址
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