The stainless steel processing usually starts from the sheet metal through: cutting process (shearing, 2D laser cutting), punching (the punching machinedue to small interchangeable molds produces holes with different shapes and sizes on the sheet metal) bending and/or molding (performed with specific presses and dies), welding (folded flaps and various details are “closed” and welded together) surface finishing and surface recovery after welding in these processes you can be inserted also components from tubes straight and / or bent and / or hydroformed. Hydroforming is a type of molding process that may be inserted within the sheet metal working.