There are several types of non-destructive testing methods, including:
1. Ultrasonic testing (UT)
2. Radiographic testing (RT)
3. Magnetic particle testing (MT)
4. Liquid penetrant testing (PT)
5. Electromagnetic testing (ET)
6. Visual testing (VT)
7. Acoustic Emission Testing (AE)
8. Thermography
9. Leak Testing
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