19 REFRACTORY BRICK, REFRACTORY BLOCK, CASTABLE REFRACTORY, PLASTIC REFRACTORY, GUNNING MIXES, MINERAL WOOL BLANKETS, MINERAL WOOL INSULATING CEMENT, INSULATING FINISH CEMENT, CLAY LADLE BRICK, HIGH ALUMINA LADLE BRICK, NOZZLE BLOCK, REFRACTORY NOZZLE, AND REFRACTORY SLEEVE