Profile: Maithan International (Export division) offers the ?R? series of magnesia carbon refractories suitable for use in the areas where the prime criteria for selection is good oxidation resistance. Our special mag carbon series of resin bonded magnesia carbon bricks is a blend of high crystal size seawater magnesia, fused magnesia and high purity graphite flakes. These are suitable for use in the vulnerable areas of EOF, EAF/EBT, VAD/LRF/AOD.