... , railway transportation and boiler pressure vessels, etc.The ultrasonic flaw detector is an essential instrument for non-destructive inspection industry.Basic ... , 250, 300, 350, 400,450,500,600,700,800,900,1000,2000,3000,4000,5000,6000,7000,8000,10000Adjusting step: 0 ... mm~99.9mm),1mm(100mm~10000mm)MTLVEL(m/s)MTLVEL: 1000~150007 fixed levels: 2260,2730,3080,3230,4700,5920,6300 ...