In the matter of certain solder joint pressure pipe fittings and solder joint drainage, waste and vent pipe fittings, made of cast copper alloy, wrought copper alloy or wrought copper, originating in or exported from the United States of America and produced by or on behalf of Elkhart Products Corporation, Elkhart, Indiana, Nibco Inc., Elkhart, Indiana, and Mueller Industries, Inc., Wichita, Kansas, their successors and assigns.