Mark Ratliff, President of Avion Manufacturing, Brunswick, Ohio, and Tom Briselden, President of Spinworks LLC, have signed an agreement making Avion the exclusive North American distributor for Spinworks. Avion will market and sell Spinworks' patented SpyroCor, a silicon-graphite radiant tube insert. The product produces non-turbulent high convection flow in a furnace's radiant tubes, improving the rate of uniform heat transfer and delivering 15 to 20 percent fuel savings.