DESPATCH INDUSTRIES, Lakeville (near Minneapolis), Minnesota

            ovens, thermal processing technology

HORIZON PERFORMANCE TECHNOLOGIES, Waukesha (near Milwaukee), Wisconsin

            industrial ovens & washers

JACKSON OVEN SUPPLY, INC., Jackson, Michigan

            industrial ovens & afterburners

L&L SPECIAL FURNACE CO., INC., Aston (near Philadelphia), Pennsylvania

            standard & custom furnaces