bids are invited for custom bid for services - steam trap phasei survey trap system survey , custom bid for services - steam trap phaseii rectification of faulty taps , custom bid for services - steam trap phaseiii continuous system monitoring 10months , custom bid for services - supply of thermodynamic steam trap mp steam 15mmnb , custom bid for services - supply of thermodynamic steam trap lp steam 15mmnb , custom bid for services - supply of 15nb td for header drain for hps , custom bid for services - supply of 15 nb bpt for lpmp tracing , custom bid for services - supply of 20nb td for header drain for lps mps , custom bid for services - supply of 25nb ball float trap with strainer for m ball float - piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations piping erection service operation and maintenance of water supply systems operation and maintenance of electro-mechanical installations total quantity :