Tender For supply of bead recrystalised alumina, ker-710 asp mat code 278630508 , sheath ceramic, ker-610, size 930x24x18 mm asp mat code 278679515 , ceramic sheath, recryatallized al. 920x15x10 mm asp mat code 278679521 , seath refractory 650x24x18 mm asp mat code 278679540 , sleeve refractory to withstand 1600 c 100x45 x35mm asp mat code 278679555