NATIONAL

REFRACTORY PRODUCTS AND MATERIALS PRIMARILY FOR USE IN INDUSTRIAL FURNACES COMPRISING BASIC REFRACTORY BRICKS; BASIC REFRACTORY SPECIALTY PRODUCTS NAMELY CEMENTS, MORTARS, COATINGS, RAMMING, CASTING AND GUNNING MIXES; CLAY-ALUMINA FIREBRICK; CLAY-ALUMINA REFRACTORY SPECIALTY PRODUCTS NAMELY PLASTICS, CASTABLES, RAMMING AND GUNNING MIXES, CEMENTS, MORTARS, COATINGS AND PATCHING MIXES; DEAD BURNED DOLOMITE; DEAD BURNED MAGNESITE; REFRACTORY INSULATING MATERIALS NAMELY BRICK; AND PERICLASE ALSO SOMETIMES COMMON REFERRED TO IN THE TRADE AS MGO