Well Known Text
 
WKT Version 2
PROJCRS["Xian 1980 / Gauss-Kruger zone 18",BASEGEOGCRS["Xian 1980",DATUM["Xian 1980",ELLIPSOID["IAG 1975",6378140,298.257,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7049]],ID["EPSG",6610]],ID["EPSG",4610]],CONVERSION["6-degree Gauss-Kruger zone 18",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",105,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",1,SCALEUNIT["unity",1,ID["EPSG",9201]],ID["EPSG",8805]],PARAMETER["False easting",18500000,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8806]],PARAMETER["False northing",0,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8807]],ID["EPSG",16218]],CS[Cartesian,2,ID["EPSG",4530]],AXIS["Northing (X)",north],AXIS["Easting (Y)",east],LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",2332]]