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ERW-made pipeline
ERW-made pipeline
After hot-rolled coil is formed by a shaping machine, the skin effect and proximity effect of high-frequency current are utilized to heat and melt the edges of the tube blank, which are then pressure-welded under the action of extrusion rolls to complete production. The resulting tubular products exhibit advantages such as low weld reinforcement and broad applicability.
Pioneering a New Chapter in Shida Tongtai’s “Global Strategy”
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