"case-hardened steel"^^ . "0"^^ . . . . . . "114794693"^^ . "case-hardened steel"@en-us . "14794693-n"^^ . . . . . "0"^^ . "110611814"@en-us . "113951622"@en-us . "steel with a surface that is much harder than the interior metal"@en-us .