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National Geographic : 1947 Apr
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The National Geographic Magazine Automatic Fingers Curl Flat Steel into Pipe and Weld the Edges Without Pause Vertical and horizontal butt-welding rolls (center and left) draw skelp, the continuous flat plate, from a furnace of the Youngstown Sheet and Tube Company. Water removes scale that forms on hot steel in the air. © National Geographic Society Kodachromes by Villard IR. (ulver Passing Back and Forth Between Giant Rollers, an Ingot Is Flattened into a Slab Here the glowing steel thunders through a rolling stand in the plate mill at Sparrows Point. Streams of water wash away scale. Slabs are sheared, then stored for further rolling into plate or sheet steel. XVI
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