Puddling furnace.jpg
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撹拌精錬法で使用される反射炉
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Puddling furnace, Schematic drawing of a puddling furnace, Puddling furnace (1881 illustration)
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Puddling furnace, Puddling furnaces, Drawings of puddling furnaces
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Reverberatory furnace used in smelting
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炉図
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炉、炉、炉の図
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puddler shock absorber amort damper puddle grate furnace room fornax