EPSG_2731: "+proj=tmerc +lat_0=0 +lon_0=117 +k=1 +x_0=500000 +y_0=0 +ellps=krass +towgs84=24.47,-130.89,-81.56,0,0,-0.13,-0.22 +units=m +no_defs +type=crs" = '+proj=tmerc +lat_0=0 +lon_0=117 +k=1 +x_0=500000 +y_0=0 +ellps=krass +towgs84=24.47,-130.89,-81.56,0,0,-0.13,-0.22 +units=m +no_defs +type=crs'
Pulkovo 1995 / 3-degree Gauss-Kruger CM 117E
metre174.43,115.5,49.51,118.5