INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (2403, 'EPSG', 2403, '+proj=tmerc +lat_0=0 +lon_0=81 +k=1 +x_0=27500000 +y_0=0 +ellps=krass +towgs84=18,-136.8,-73.7,0,0,0.814,-0.38 +units=m +no_defs +type=crs', 'PROJCS["Beijing 1954 / 3-degree Gauss-Kruger zone 27",GEOGCS["Beijing 1954",DATUM["Beijing_1954",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[18,-136.8,-73.7,0,0,0.814,-0.38]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4214"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",81],PARAMETER["scale_factor",1],PARAMETER["false_easting",27500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2403"]]');