procurement of square tiles, round tiles and air washer assembly for ahp of unit no. 1 to 4, ph-i and ii, at sgtps, mppgcl, birsinghpur. , square tiles as per following specification. i)size- 12”x12”x1” ii) material–blue fused alumina (al2o3 content 82%) iii) type :-porous tiles champers cut iv) tolerance:+/- 5mm v)bulk density: - 2.3 gm/cc max. vi) porosity :-30% to 40% vii) max. used temp- 900°c viii) m.r.o.- dry 150 kg/cm² ix)m.r.o.- wet 120kg/ cm² make– grindwellnorton/carborundum or equivalent standard make. , round tiles for ahp as per following specification. i) size: -12” dia, thickness-1” ii) material:– blue fused alumina (al2o3 content 82%) iii) type:-porous tiles champers cut iv) tolerance:+/- 5mm v) bulk density– 2.3 gm/cc max. vi) porosity-30% to 40% vii) max. used temp - 900°c viii) m.r.o.– dry 150 kg/ cm² ix) m.r.o.– wet 120kg/ cm² make– grindwellnorton/carborundum or equivalent standard make. , air washer assembly:- body inlet- m.s. is-2062 chamber discharge- m.s. is-2062 weldment cone & baffle- m.s. is-2062 air washer support structure- m.s. is-2062 counter flange- m.s. is-2062 nozzle- s.s.-410/416 pipe spray nozzle, plate cover, flange, cover hand hole, liner, section transition, closure protective, grid, plate baffle base-m.s.