Digital Ultrasonic Testing Equipment For Welded Rail Joints With Coloured Lcd Tft Screen, Trigonometrical Function And A-Scan Storage Along With Data Setup As Per Rdso Specification No. Rdso/M&C/Ndt/129/2005 Rev-Ii, August 2014 With At & Fb Weld Test Piece For Smooth Usfd Testing Of Railway Track.