supply of boiler refractory material in season 2024-25 , supply of boiler refractory material in season 2024-25 , superheat castable refractory 45% alumina is:158-1967 in 50 kg bags: acc make , suncast make , fire cement ( dry ) 45% alumina:acc make , suncast make , fire clay ( dry ) :acc make , suncast make , standard fire bricks as per is standard with 45% alumina size 9”x4.5”x3” , special fire bricks / tiles45% alumina as per different drawings , standard arched bricks size 9”x4.5”x3”x2.5” , standard insulation bricks ( cold face ) , standard insulation bricks ( hard face ) , calcium silica block 600 x 150 x 50 mm