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Old 27th March 2022, 06:55 PM   #3
David R
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I think this is a misinterpretation of the term "fluid cast steel" which appears on some 19th century gun barrels and possibly blades. It refers to the raw billet produced by industrial processes, a homogeneous steel rather than the older folded or puddled metal. This was then forged by hand or rollers into the final product.
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