2013NB/T 20002.5-2013 Welding code for mechanical components of PWR nuclear islands.Part 5: Technical qualification for production workshops
1996EJ/T 1027.18-1996 Welding code for mechanical components of PWR nuclear islands Specification for equiapment production workshops
EJ/T 1027.18-1996 Welding code for mechanical components of PWR nuclear islands Specification for equiapment production workshops was changed to NB/T 20002.5-2013 Welding code for mechanical components of PWR nuclear islands.Part 5: Technical qualification for production workshops.