bids are invited for hydrotesting of msv degassing and isolation of bullets , lighting arrangement , metallic internal scaffolding , internal cleaning and visual inspection , ultrasonic thickness measurement , ultrasonic flaw detection measurement , wet fluorescent magnetic particle testing , dye penetration test , hardness testing , hydrotest of msvs , certificate by peso , checking of differential and uniform settlement of vessel , wet calibration of msv , supply of studs, gaskets and nuts,etc , boxing of vessel , painting of exposed area , cylinders for liquefied petroleum gases (lpg) of 14.2 kg total quantity : 48