The cold working machine is typically employed in operations such as drawing, rolling, flexing, forming, curved forming, flexing, forming, assembling, manufacturing, encoding, or extruding. While in the drawn image, metal tubes, rods, etc., which have been drawn, were also pulled by a pressed die aimed to both decrease their size but also facilitate an increased length. Rolling entails moving the product across a number or roller guides to obtain the optimum dimension or surface character. BendING forms the desired shape, whereas extrusion is used to force it past a specialized die and produce intricately shaped cross-sections. If you plan for a useful reference on straightening machine, check out this site .