Industrial ceramic silicon carbide refractory furnace parts, namely, boats, saggars, crucibles, tubes, nozzles, plates, beams, rods, rollers, and bats; Industrial ceramic silicon carbide refractory parts for use as kiln furniture in furnaces and kilns, namely, boats, saggars, crucibles, tubes, nozzles, plates, beams, rods, rollers, bats, posts and shoes

Design and calculation of refractory performance