tender for supply of boiler refractory accessories for season 2024-25, castable refactory a.c.c. , castable refactory abve 45% alumina suncost , fire cement dry a.c.c. , fire cement good quality above 45% sun brand alumina , fire cement liquid a.c.c. , fire cement liquid other good quality , standard fire bricks as per is-b above 45% alumina size 9 x 4½”x 2 , 9 x 4 ½” x 2½” , 9 x 4½”x 3 , 9 x 4½” x 1 , special fire bricks as per is-b above 45% alumina as per sp-13 drg. no. rb-m-43r size , 3 / 53 , 4 / 53 , 5 / 53 , 6 / 53 , other special bricks as per is-b drg. no. above 45% alumina , insulation bricks standard , insulation cotton ( glass wool ) , tile bricks 1 x 1 x 3 , plain tile bricks magenesia size 305 x 153 x 50 mm thick , super castable refactory above 45% alumina ( sun cast super ) , accoset 50 , liquid silicate , glass wool , b-92 drg. no. rb / m-56r , b-93 drg. no. rb / m-256 , 54 ax drg. no. rb / m-54 ax , d1 drg. no. rb / m-164 r , 163-c drg. no. 163 c , 163 d drg. no. rb / m-163 d , 177 / 4 drg. no. rb / m-177 / 4 , tile bricks size 310 x 480 x 65 mm