National NDT (Training & Certification) Services: Best NDT training institute in india / NDT training in visakhapatnam visakhapatnam Gajuwaka (Autonagar), andhra pradesh 530012 For More Details Visit : www.nationalndt-india.com  | Email : training@nationalndt-india.com  | Contact Person : V.SATYANARAYANA (Managing Director) |  Mobile : +91 8686748989| Office (Land Line) : 0891-2703456