Manufacturing Process
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It begins with annealing and surface treatment of ERW tubes
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Cold swaging/push pointing procedures are applied for preparing pointed ends.
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High precision close machined die is used for outer diameter control
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Plug placed coaxial with outer die for inner diameter control
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Annealing, straightening, and final testing are done to make sure the product is fit for the required application.
All Cold Drawn Welded (CDW) tubes produced feature excellent finish, durability, high precision dimensional tolerances, corrosion resistance, controlled and uniform mechanical properties and uniform sectional thickness.