Wonder N95 Mask Making Roller Die

Roll forming is a continuous metal forming process taking sheet, strip, or coil stock and bending or forming it to a continuous cross section. The process is performed between successive pairs of rolls that change the shape until the desired section is completed.A die is a specialized machine tool used in manufacturing industries to cut and/or form material to a desired shape or profile. Stamping dies are used with a press, as opposed to drawing dies (used in the manufacture of wire) and casting dies (used in molding) which are not.