| 摘要 |
1339132 Sintered ferrous alloy BRICO ENG Ltd 19 May 1971 [28 May 1970] 25654/70 Heading C7A A sintered ferrous alloy has the composition:- It may be used in valve seat inserts. It may be produced by mixing and sintering powders including pre-alloys of 87% Fe and 13% Cr and 90% Cu, 5% Fe and 5% Mn. |
