EntityQ3131218· pop 14· linked from 129 articlestataraSign in to savetraditional Japanese furnace used for smelting ironConnectionsJapanese swordEntityJapanCountryironEntityYouTubeConceptsteelEntityShintoEntityclayEntitykanjiEntityShimane PrefectureEntityOkayamaEntitycharcoalEntitycast ironEntityEdo periodEntityKojikiEntitykamiEntityNihon ShokiEntityblast furnaceEntityBessemer processEntityDamascus steelEntitypig ironEntityCategoriesIndustrial furnacesSteelmaking