proj4.defs("EPSG:22993","+proj=tmerc +lat_0=30 +lon_0=27 +k=1 +x_0=700000 +y_0=200000 +ellps=helmert +towgs84=-146.21,112.63,4.05,0,0,0,0 +units=m +no_defs +type=crs");