https://www.twse.info/vocab/https://www.twse.info/vocab/skos/1620Hüttenwesen https://www.twse.info/vocab/skos/1620 Ig Industriezweig BT https://www.twse.info/vocab/skos/1620 Stahl RT https://www.twse.info/vocab/skos/1620 Kupfer RT https://www.twse.info/vocab/skos/1620 Blei RT https://www.twse.info/vocab/skos/1620 Stahlindustrie NT https://www.twse.info/vocab/skos/1620 Eisenindustrie NT https://www.twse.info/vocab/skos/1620 Metallindustrie BT https://www.twse.info/vocab/skos/1620 Montanindustrie BT https://www.twse.info/vocab/skos/1620 Verhüttung UF