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ERW pipe processing technology

2017-08-03 10:45:37   Comment:0 Hits:
  3mm Q235 ERW Welded Black Carbon Steel Pipes is a hot-rolled coil through the molding machine, the use of high-frequency current skin effect and proximity effects, so that the edge of the tube heating and melting, in the role of pressure extrusion under pressure to achieve produce. At present, in the world of welded steel pipe production, ERW welded pipe production accounts for about 80 percent of the total pipe production.

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