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Lead poisoning in the smelting and refining of lead Faber du Faur retort furnace. fr Four de grillage des minerais de plomb invent par Adolf von Faber du Faur Il s'agit d'une cornue dont la chauffe permet l'vaporation complte du zinc Le plomb est ensuite coul par basculement de la cornue en Identifier leadpoisoninginshami org