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发明名称
Patterns for precision casting
摘要
<p>Cast patterns are used in precision casting and are relatively large. They are made by melting urea and introducing it into the pattern material, casting finally being performed in rubber moulds. Pref. the moulds are of silicon rubber.</p>
申请公布号
FR2062999(A7)
申请公布日期
1971.07.02
申请号
FR19700034269
申请日期
1970.09.22
申请人
SULZER FRERES
发明人
分类号
B22C7/00;B22C7/02;(IPC1-7):22C7/00
主分类号
B22C7/00
代理机构
代理人
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