tender for fabrication of 1000mm belt conveyor return roller at khottadih colliery. (inclusive of epf/cmpf) , cutting of 4 ms pipe of 1150 length (fabrication of 100 nos bottom rollers) , machining of ms rod 1 size for slotting, circlip, grouping in both side (fabrication of 100 nos bottom rollers) , fixing of ms rod in centre of ms pipe with housing, dust seal, bearing, 6205 in both side (fabrication of 100 nos bottom rollers) , welding in both side (fabrication of 100 nos bottom rollers) , cost of ms pipe 4 (fabrication of 100 nos bottom rollers) , cost of ms rod 1 (fabrication of 100 nos bottom rollers) , cost of welding rod (fabrication of 100 nos bottom rollers) , cost of bearing 6205 (fabrication of 100 nos bottom rollers) , cost of housing (fabrication of 100 nos bottom rollers) , cost of dust seal (fabrication of 100 nos bottom rollers) , cost of circlip (fabrication of 100 nos bottom rollers) , cost of da cylinder (fabrication of 100 nos bottom rollers) , cost of oxygen cylinder (fabrication of 100 nos bottom rollers) , total impact of gst for the purpose of ctc