Tender For corrigendum : tender for 1) supply & erection of colour coated gi sheet, 2) supply, fabrication & erection of ms duct with supporting structure and all accessories etc., 3) erection work of thermal insulation of esp, duct and id fan, and 4) hiring of 300 ton crane for the project of augmentation of fuel & flux crushing facilities (package- 064) of bhilai steel plant (sail), bhilai chhattisgarh . - 3rd call