supply of steam coal having calorific value less than 5500kcal kg supply of steam coal having calorific value less than 5500 kcal kg , item no . , supply of steam coal having calorific value not less than 5500kcal/kg . ( inclusive of all insurance , loading-unloading , octroi , transportation etc . ) , brick work in c . m 1:5 mix using 2nd class ground moulded chamber burnt bricks with including cost and conveyance of all materials and including all labour charges etc complete , plastering in c . m 1:5-12 mm thick with including cost and conveyance of all materials and including all labour charges etc complete