共 50 条
- [1] COFREND - FRENCH COMMITTEE FOR STUDY OF NON-DESTRUCTIVE TESTING NON-DESTRUCTIVE TESTING, 1968, 1 (06): : 383 - &
- [2] COFREND: Certification of nondestructive testing personnel Materiaux et Techniques, 1988, 76 (7-8): : 25 - 29
- [5] Committee on nondestructive examination Welding Research Council, Progress Reports, 1994, 49 (3-4):