bids are invited for turamdih sleeve launder hydrocyclone underflow and overflow valves coupling mill liners and girth gear replacement , erection of gear box trommel screens torsion shaft feed and discharge sleeve launder hydrocyclone underflow and overflow valves coupling mill liners and girth gear replacement , replacement of propeller shaft , replacement of propeller blades , replacement of agitator assembly , fabrication of pipe size 15 nb to 40 nb , erection of pipe size 15 nb to 40 nb , dismantling of pipe size 15 nb to 40 nb , fabrication of pipe size 50 nb to 80 nb , erection of pipe size 50 nb to 80 nb , dismantling of pipe size 50 nb to 80 nb , fabrication of pipe size 100 nb to 150 nb , erection of pipe size 100 nb to 150 nb , dismantling of pipe size 100 nb to 150 nb , fabrication of pipe size above 150 nb , erection of pipe size above 150 nb , dismantling of pipe size above 150 nb , mill feed end trunion bearing or insert changing , mill discharge end trunion bearing or insert changing , erection of liner fitting in different chutes , dismantling of liner fitting in different chutes , lubrication of equipments , overhauling or replacement of slurry pumps annual mechanical maintenance job of mill house at total quantity : 5890