球墨铸铁磨球
Ductile iron grinding ball
球墨铸铁强韧化
strengthened nodular cast iron
球墨铸铁曲轴
nodular cast iron crankshaft
铁素体化球墨铸铁
ferritised spheroidal graphite iron
稀土镁球墨铸铁
rare earth-magnesium nodular cast iron
中锰球墨铸铁
Medium manganese nodular cast iron
铸态高韧性球墨铸铁
as cast high-tenacity nodular cast iron
铸态厚断面高韧性球墨铸铁
As-Cast Heavy Section Ductile Iron with High Toughness