Have You Ever Seen Stainless Steel Inflated？

Have you ever seen stainless steel inflated like a balloon? That hard stainless steel welded shut around the edges starts ballooning the moment air gets blown in through a pipe. The rigid metal slowly puffing outward before your eyes. It looks insane, but the stainless steel has actually been welded into a sealed hollow shell. And once the pressure inside becomes strong enough, the hard metal stretches beyond its limit and permanently locks into shape. And many of these metal forms eventually end up as furniture and metal