cast iron Synonyms

iron gray cast iron ductile iron unwavering white iron damping off cast in stone smelting works crude iron cast iron alloy malleable iron hard and fast gray iron irons bulletproof set in stone deep-rooted iron-clad unvarying nodular iron Ferri cast irons cr-steel ductile cast iron alloy casting molten iron forged metal gray cast grey cast iron heart fittings heart malleable fittings iron with a carbon content iron with a high carbon content kind of iron adamant fixed hard immutable impervious inflexible invariable marble metal firm established decided alloy aluminum block board