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made the iron pillar in 310 bc
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InSir Humphrey Davy discovered the electrical arc
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vestely petrol came up with the idea to weld with the electric ark
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Thermite was the first welding invented
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oxy fuel welding
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stud welding became popular in bulding ships and submerines
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is a coating that goes around a electrode
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konstantink kherval created the underwater electrical ark
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like plasma torch
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deep narrow welding
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valdimere metkivich, came up with the idea to use three phase welding
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