Nick break, freebend, fracture
Tensile test
Guided bend test
Impact and particle test
2 types
3 types
4 types
5 types
Non-destructive test
Destructive test
Non-destructive and destructive
Performance test
Visual inspection
Pressure test
Stethoscopic test
Magnetic particle test
Preparation, welding, finishing
Raw metal, welding, finishing
Welding, finishing, transportation
Finishing, transportation, marketing