The present invention relates to processes for producing a deep-nested embossed paper products. The inner surface includes one or more engagement surfaces that are tapered inwardly at an angle that approaches a taper of a deformable wall of the deformable nut. When M bits are allocated for aliasing, dirty bit information can be provided at a granularity that is 1-th of a memory page. A related exemplary embodiment is an air filter fabricated entirely from recycled materials, including a recycled cardboard frame, the non-woven textile based filter media made from recycled PET derived polyester fibers, and a support structure made of recycled plastic or metal wire. Since such a machine part is excellent in the super long life fatigue characteristics, it can be used suitably as a bearing ring or a rolling element of a rolling bearing.