Full resolution (JPEG) - On this page / på denna sida - VI. Mining and Metallurgical Industry. General Survey. By C. Sahlin - 2. Iron and Steel Industry. By J. A. Leffler
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the manufacture of wrought iron.
279
The Westman Roasting Furnace.
furnaces abroad. In 1876 the first blast furnace constructed on this principle
was erected, and this method was adopted in most of those built after that
time. In 1913 there were 19 blast furnaces equipped with six tuyeres. In 1910
one was built with 5 tuyeres.
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