tender for supply of boiler refractorys , standard fire bricks is-8 size-9x4-1 / 2x3 , standard fire bricks is-8 size-9”x4-1 / 2”x2-1 / 2” , standard fire bricks is-8 size-9”x4-1 / 2”x2” , standard fire bricks is-8 size-9”x4-1 / 2”x1” , insulation bricksal2o3-45% size-9x4-1 / 23 , super fire-crate castable refractory ace make in 50kg bags , other than ace make ( good quality ) suncast in 50kg bags , fire cement dry-ace make ( in 50 kg bag ) , fire cement dry-other than ace ( good quality ) 50 kg bags , fire clay calcinedhaving-al2o3 above-45% , special fire bricks as per drg. have allumina above-45% , special tiles as per drg. no.b-6 ( slno.01 ) wt.9.36 kg each as per is-8, 5 bl-17038 / a , special tiles as per drg.no.b-6 ( sl.no.03 ) is-8 wt of each-9.36kg , special tiles is-8 as per drg.no272 / sscm ( sl.no.05 ) wt.of each 22.0kg , tiles as per drg.no. 272 / sscm ( sl.no.09 ) , special type furnace bricks as per drg.no.271 / sscm sheet-1.off-2, sl.no.15 ( wt of each-10.0kg ) , special type furnace bricks as per drg. no.271 / sscm sheet-1, off-2.sl. no.18 ( wt of each-10.5kg ) , special curved tiles as per drg. no.b-8, sl.no.02 approx.wt.22.00kg each , magnesia block 600x150x50mm , silicate drum , high temperature castable refractory max crate super