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Smelting in the lead blast furnace :Handling rich charges.
Smelting in the lead blast furnace handling rich ores.
Smelting in the lead blast furnace :handling rich charges.
Smelting in the lead blast furnace :handling rich charges.
Smelting in the lead blast furnace :Handling rich charges.
Reconversion problems in lead metallurgy
Zinc smelting in the horizontal retort fired with natural gas.
Zinc smelting in the horizontal retort fired with natural gas.
Zinc smelting in the horizontal retort fired with natural gas.
Zinc smelting in the horizontal retort fired with natural gas :
Lead smelting in the ore hearth.