... Steel seamless stainless pipes/eddy current testing1. Standard: GB, ASTM, JIS, DIN, EN, AISI2. Material: 304, 304L, 316 ... , Bright annealed, Mechanical polishing, electrolytic polishing8. Test: Eddy current, Hydrostatic, Mechanical, Chemical composition analysis, etc.9. ... spectrum analyzer, fully automatic ultrasonic flaw detector, eddy current detecting equipment, water pressure testing equipment, ...