{"tema_id":"538","string":"Redu\u00e7\u00e3o calciot\u00e9rmica.","created":"2025-10-05 21:57:12","code":null,"notes":[{"@type":"Nota de escopo","@lang":"pt-BR","@value":"\"processo de extra\u00e7\u00e3o metal\u00fargica com uso de c\u00e1lcio\". "}]}