supply of boiler refractory , castable refractory as per is 9010 1978 above 40% al 2 0 3 and alumina , do- but super n . c make 50 kg bag , fire cement as per is 1978 above 40% al 2 0 3 & alumina , do-but super n . c . make , acc makecastable refractory as per is 9010 1978 above 40% al 2 0 3 and alumina , do but drg no 130 , do but drg no 131 , do but drg no 133 , do but drg no 88 , do but drg no 89 , do but drg no 105 , do but drh no 171 , do but drg no 277 part 1 , do but drg no 277 part 2 , do but drg no 430 , liquid fire cement as per above is 1967 sd . , taper fire brick as per is 8 , 1967 amendment is 1979 size 230 x 115 x 65 mm x 45 mm taper , do but 230 x 115 x 75 to 65 mm taper , standared fire brick 230 x 115 x 75 mm , do but 230 x 115 x 30 mm drg no 107 , do but 230 x 115 x 65 mm drg no 82 , light weight standard brick 230 x 115 x 75 mm . , special fire brick as per drg no . 44 p-3 , do but drg no 44 p-1 , do but drg no 44 p-4 , do but drg no 44-10 , do but drg no 443-c , do but drg no c-6 , do but drg no c-8 , do but drg no c-9 , do but drg no c-14 , silica block size 600 x 600 x 25 mm , do but 400 x 150 x 50 mm , do but 225 x 120-x 75 mm , accoset-50 acc make 50 kg , liquid silicate , glass wool , lrb matterss in standared thickness & size