Engineering Tube on Instagram: "The manufacturing of seamless steel pipes primarily involves a process called extrusion or rotary piercing, followed by hot or cold drawing. Initially, a solid steel billet is heated to a high temperature and then pierced through its center using a rotary or hydraulic press to create a hollow shell—a process known as rotary piercing or core making. This hollow shell, or billet, is then further deepened and shaped through hot or cold drawing, where it is pulled thr