bids are invited for testing and calibration of trv , testing and calibration of multiport srv , testing and calibration of srv , ndt of pressure vessels , hydrotesting of pressure vessels , testing and calibration of pressure gauge , testing and calibration of pressure switch , testing and calibration of pressure transmitter , testing and calibration of temperature gauge , testing and calibration of chain pulley block , testing and calibration of high mast rope , testing and calibration of lifelines , testing and calibration of elcometer , testing and calibration of digital insulation tester , testing and calibration of earth resistance tester , testing and calibration of lux meter , testing and calibration of multimeter , testing and calibration of clampmeter , testing and calibration of electrical gloves , testing and calibration of electrical mats , testing and calibration of torque wrench , testing and calibration of explosive meter , supply and installation of 2ss pressure gauge , supply and installation of 4ss pressure gauge , supply and installation of 6ss pressure gauge , supply and installation trv , supply and installation srv , settlement survey of msv , cad drawing and modifications , testing and calibration of master pressure gauge total quantity : 1828