nodular graphite cast-iron

例句：

1. 1.The nodular graphite cast-iron is used in the manufacturing of high-speed rail cars.
   球墨铸铁用于制造高速列车。
2. 2. The nodular graphite cast-iron has excellent wear resistance and corrosion resistance.
   球墨铸铁具有极好的耐磨性和耐腐蚀性。
3. 3.The nodular graphite cast-iron is widely used in various industrial fields.
   球墨铸铁在各种工业领域都有广泛应用。