The Rail Wear gauge block is used for calibrating andmeasuring the Zero error and uncertainty of the railwear gauge . It can be customized according to rail typeIt is made up of the base , Standard reference block anddeputy blocks. Model:LJ-JM-LK Type:Rail Wear Gauge Calibration Block Material:Stainless Steel Model:LJ-JM-LK Application:Rail Wear Gauge Weight:2kg Can customized for different Rail Type