30mm OD X 2mm/2.5mm/3mm/4mm/5mm Thickness

About 30mm OD X 2mm/2.5mm/3mm/4mm/5mm Thickness

*Cold Extended Welded (CEW) tubes, also known as CDW (Cold Drawn Welded), are high-precision steel tubes manufactured through a meticulous cold-drawing process. Starting as electric resistance welded (ERW) tubes, they are pulled through a die and over a mandrel at room temperature. This process significantly enhances the tubea s mechanical properties, resulting in superior dimensional accuracy, a high-quality surface finish, and increased tensile strength. Because the drawing process eliminates the internal weld bead, CEW tubes offer exceptional concentricity and uniformity. They are the preferred choice for demanding industrial applications such as hydraulic cylinders, shock absorbers, automotive axles, and precision engineering components where tight tolerances and durability are non-negotiable.