蠕虫状+球状石墨
vermicular graphite + spheroidal graphite
含碳铁矿球团
Carbon-bearing Iron Ore Pellets
金属化铁矿球团
iron ore pellets mettalized
内配碳铁矿球团
coal-containing iron ore pellets
球[状石]墨铸铁
nodular iron
spherulitic [graphite cast]iron
Nodular Cast iron
nodular graphite cast iron
球状石墨铸铁
cast-iron motted
cast-iron pearlitic
spheroidal graphite cast iron
nodular graphite cast iron