procurement of rectangular with circular corner various expansion joint with liner plate (covering plate) of flue gas, hot secondary air duct and primary air duct of bhel make boiler of 2x250mw unit no. 10 and 11, stps, sarni. mppgcl , manufacturing & supply of rectangular with circular corner various expansion joint with liner plate(covering plate) of flue gas, hot secondary air duct & primary air duct of of bhel make boiler of 2x250mw, unit no. 10 & 11, stps, sarni , hot secomdry air duct rectangular with circular corner metallic expansion joint, size=4570 mm x 3540mmx272, stl2 with liner plate(as per drg.) , for hot secondary air duct size- 4560 mm x 3530mm no. of fold = 02 nos. material = cortan steel a588 gr. –a , working temp. = approx 300°c, medium of flow = hot air , flue gas duct rectangular with circular corner metallic expansionjoint, size:- 3114mm x 5014mm x 272mm, (fs) stl2 with liner plate (as per drg.), no. of fold: 2 nos.for flue gas duct size- 3114mm x 5014mm , material:- cortan steel a588 gr. –a, medium of flow = flue gas, material code : - 91604736914-01 , hot primary air duct rectangular with circular corner metallic expansionjointsize 1260x2010 (as per drg.), style 04(hs)(recj)corten steel including liner andplate flange