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Swedish Iron through the Ages
A Few Technical Problems
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18th century abroad amount annual bar iron became bellows Bergslagen Bessemer Bessemer process blast furnaces Bofors carbon central Sweden charcoal coke commercial iron concentrates concerns connection considerable constructed consumption copper Dalarna Dannemora demand deposits Domnarvet earlier early economic electric erected Eskilstuna especially established export extent extraction factories Fagersta farmers fields foreign forest forge Gotland Gustav Vasa hammer high-phosphorus important improvements increased indicate industry's ingot steel inventions iron and steel iron production ironmasters ironworks Kiruna labor lake and bog Lancashire Lappland large number later located low-phosphorus Lump machine machine-shop industry machinery Martin mentioned merchants metal methods mineowners mining districts operation osmund output owners period phosphorus pig iron plant Polhem province raw material regions rolling mill Sandviken sintering skilled smelting sponge iron steel production Stockholm Sweden Swedish iron industry Swedish ironworks technical tons various Varmland workers