... Bright annealed, Mechanical polishing, electrolytic polishing8. Test: Eddy current, Hydrostatic, Mechanical, Chemical composition analysis, etc.9. ... , fully automatic ultrasonic flaw detector, eddy current detecting equipment, water pressure testing equipment, ... temperature impact testing machine, intergranular corrosion testing device, Brinell Rockwell & Vickers hardness tester, metallographic ...