Ultrasonic instrument inc is the inventor and leader of dual-track ultrasonic rail flaw detection vehicle, we offers integrated rail detection solutions to help clients reduce the railway risks associated with track failures and potential derailments. UR18-D dual rail type ultrasonic rail flaw detection vehicle is a electric rail flaw detection vehicle, using lithium battery drive, patented disassembled structure design, any module is only carried by two people, the travel speed of the vehicle is 20km/h, the detection speed is 15km/h. This automatic ultrasonic testing vehicle can be used in track flaw detection of state-owned railways, private railways, ports, mineral company track, city metro and so on.