Ultrasonic testing (second edition) Zheng Hui, Lin Shuqing
X-ray detection (second edition) is strong
Penetration detection (second edition) Hu Xuezhi
Magnetic particle testing (second edition) Song Zhizhe
Training materials for qualification certification of nondestructive testing personnel in national defense science and technology industry
Visual inspection, magnetic particle inspection, penetrant inspection, ultrasonic inspection, radiographic inspection (Zheng), eddy current inspection, leakage inspection, acoustic emission inspection and nondestructive inspection.