For fifty years, National has been the professional diemakers choice for cutting, creasing, and perforating rule as well as m ... any other innvotive products used in steel rule diecutting. National is not only your one stop source for rotary and serrated steel rule, but we also bring the strength and knowledge from Zimmer Industries. This gives us a remarkable amount of versatility in terms of offering solutions to a wide range of diecutting problems. read more