|
Treatment : quenched and tempered
Magnification : 10 : 1
Etching medium :
Sampling / Specification : steel bar surface
Testing result :
longitudinal defects on the surface |
Treatment : quenched and tempered
Magnification : 25 : 1
Etching medium :
Sampling / Specification : steel bar surface
Testing result :
longitudinal defects on the surface |