"extremely robust; \"an iron constitution\""@en-us . "301965621"@en-us . "301973387"@en-us . "02038891-a"^^ . "cast-iron"@en-us . . . . "iron"@en-us . "302038891"@en-us . "302038891"^^ . . "cast-iron"^^ . . "0.5"^^ . . "0.5"^^ .