27033164 comprehensive health assessment of welds of reactors and other equipments by phased array ultrasonic testing ( paut ) and time of flight diffraction ( tofd ) at barauni refinery ....
5843480 advance ndt agencies for aet, tofd, paut, lrut, iris, rfet, eddy current testing, lfet and other techniques....
5495536 tofd and paut of dhdt reactors and high pressure piping in barauni refinery....
3434176 tofd pa examination of critical weld joints of coke drums in coker b at barauni refinery...
2305014 tofd (time of flight diffraction) of dhdt reactors (702 r 01 & 702 r 02) & phased array of high pressure process pipings at barauni refinery....