SHAPED REFRACTORY MATERIAL-NAMELY, [ CARBON BONDED SILICON CARBIDE GRAPHITE INSERT STOOLS, ] CARBON BONDED SILICON CARBIDE GRAPHITE BRICKS, [ GRAPHITE BRICKS, AND GRAPHITE STOPPER HEADS; AND UNSHAPED REFRACTORY MATERIALS-NAMELY, REFRACTORY RAMMING MATERIALS AND REFRACTORY PATCHING MATERIALS FOR CUPOLAS, GRAPHITE RAMMING MIXTURES FOR BLAST FURNACE TROUGHS AND RUNNER, AND GRAPHITE RAMMING MIXTURES FOR FILLING BLAST FURNACES ]