Diagram of Rennerfelt furnace - Drawing. Public domain image.
Summary
Français : Schéma électrique du four réduction-fusion des minerais de fer, de Rennerfelt.
English: Electric diagram of Rennerfelt iron ore furnace.
Tags
Date
1915
Source
Electrothermic smelting of iron ores in Sweden, plate I
Link
Copyright info
public domain