nodular graphite cast-iron

This problem could be solved by using ferrite nodular graphite cast iron.

采用以铁素体为基的蠕墨铸铁可解决此问题。

The domestic and foreign nodular graphite cast iron standard samples were analyzed with vacuum direct-reading spectrometer and were applied in the routine analysis.

运用真空直读光谱仪分析国产和国外产球墨铸铁标样，并应用在生产实践、炉前分析中；

It is a basic demand for evaluating the microstructure and performance to determine the graphite size and its spheroidization rate in nodular cast iron.

正确测定球墨铸铁中石墨大小及球化率，是对球墨铸铁组织性能进行评定的基本要求。