Piercing, usually refer to a form of body modification, is the practice of puncturing a part of the human body, creating an opening in which jewelry may be worn, or where an implant could be inserted.
What is Piercing of Seamless Stainless Steel Pipe?
As typical method of producing the seamless tube, a round bar heated to a predetermined temperature is fed to a piercer, and a hollow shell is produced by piercing an axial center portion of the solid steel bar, then cooled to room temperature by water cooling.
