Crucible Cast-Steel Melting Furnace Fig84 grennwood.jpg
William Henry Greenwood
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Crucible Cast Steel Melting Furnace Fig84 grennwood, Section of a furnace used for crucible steel.
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Crucible Cast Steel Melting Furnace Fig84 grennwood, Drawings of iron and steel industry, Crucible furnaces
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クルーシブル鋳鋼 溶融炉 フィグ84 グレンウッド - 鋼に使用される炉のセクション。
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クルーシブル鋳鋼 溶融炉 グレンウッド、製鉄業、炉
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crucible steel steel industry crucible silenced furnace room refractoriness fornax molten furnace steel company steel mill rolling mill pursued