. . . . "0"^^ . . "102831998"^^ . "0"^^ . . . . "a refractory-lined furnace used to convert pig iron into steel by the Bessemer process"@en-us . . . "02831998-n"^^ . "Bessemer converter"^^ . "102732204"@en-us . "Bessemer converter"@en-us . "102283501"@en-us . .