Railway turnout frame ruler

LJ-KJC-Ⅱ Railway Turnout Frame Spacing Ruler is a measuring instrument used to measure railway turnout inspection. It can not only measure the guide curve spacing size, but also be used to measure the frame size of the turnout. When measuring the turnout structure size, it is forbidden to cross the two rails with the ruler. Insulating plates or side plates must be used to contact the rails to avoid the appearance of red light bands.