抗磨铸铁:G-X300NiMO3Mg0.9610G-X260NiCr420.9620G-X330NiCr420.9525G-X300CrNiSi9520.9630G-X300CrMo1530.9635G-X300CrMoNi15210.9640G-X260Cr270.9650G-X300CrMo2710.9655)