Ervin Industries - The world leader in Blast Cleaning, Shot Peening, and Advanced Metal Powders. Visit our website to learn more about The World Standard products we engineer: AMASTEEL - steel shot and steel grit; AMACAST - stainless steel shot; AMAGRIT - stainless steel grit; ERVIN CW - carbon cut wire steel shot; ERVIN Test Machine; ERVIN Spot Check Kit; and ERVIN Frangible Bullets. http://www.ervinindustries.com/products