supply, installation, commissioning of portable digital ultrasonic flaw detector model arya - 1 ( r) of m / s . modsonic instruments mfg., ahmedabad or similar with standard accessories and spares as perrdso spec no. m&c/ ndt/ 125/ 2004, rev.ii jan 2017 brands: m/s. modsonic instruments mfg co -arya -1(r) or m/s. electronic & engg. co - digiscan ds-333 .
