procurement of different types of esp spares for u1 esp overhauling work in july august 2023, sgtpp. , procurement of different types of esp spares for u#1 esp overhauling work in july # august#2023 , two roller bush bearings # for rapping mechanism of esp sgtpp1 , three roller bush bearings for rapping shaft of esp , four roller bush bearings # for rapping mechanism of esp sgtpp1 , shaft insulatorimported , major pin wheel big , minor pin wheel small , hopper heater # , support insulator heater 1.5kw # , shaft insulation heater # , gd screen, first stage plate for esp # , inner arm for rapping hammer for esp moc-en 8