Tender For supply of disconnecting of fittings , degassing of bullets , providing ms tubular ladder and scaffolding , providing flame proof lighting arrangement and exhaust fan , thorough cleaning of the inner surface , carrying out external inspection , fixing back all the liquid and vapour lines , ultrasonic thickness measurement on shell plates , wet fluorescent magnetic particle test , ultrasonic flaw detection , dye penetration test , hardness testing , radiography test , wet type calibaration of bullets , settlement of mounded bullets , settlement of mounded bullets during hydrotesting , replacement of nuts, bolts, washers and gaskets , hydrotest and stretchtest , certification and documentation