Tender For providing of calibration services - electrical, calibration of ultrasonic flaw detector-ufd model usn 52l sn 10022600p69v on site calibration only through oem/oem authorised channel partner; vertical linearity, horizontal linearity, time base linearity, full ra..,calibration services - electrical, calibration of eddy current tester - ect model mentor em, sn 1610ht4 - on site calibration only through oem/oem authorised channel partner; amplifier linearity, impedance plane display, defect sensitivity (ect); oem..