air filters sold as a component of earplugs for sound and pressure reduction

filtration systems used for the separation of materials from contaminated liquids such as wastewater, cleaners, plating baths, galvanizing chemicals, coolants and organic solvents

Masonry blocks comprised of stone, granite, or granite aggregates

ear plugs for non-medical purposes, namely sound and pressure reduction

Disk brake pads for passenger car and light truck applications.

Scale model automobiles