CGCS2000 3 Degree GK Zone 30 - EPSG:4518

WKT

PROJCS["CGCS2000_3_Degree_GK_Zone_30", 
	GEOGCS["GCS_China_Geodetic_Coordinate_System_2000", 
		DATUM["D_China_2000", 
			SPHEROID["CGCS2000", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Gauss_Kruger"], 
	PARAMETER["False_Easting", 30500000.0], 
	PARAMETER["False_Northing", 0.0], 
	PARAMETER["Central_Meridian", 90.0], 
	PARAMETER["Scale_Factor", 1.0], 
	PARAMETER["Latitude_Of_Origin", 0.0], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["CGCS2000_3_Degree_GK_Zone_30", 
	BASEGEOGCRS["GCS_China_Geodetic_Coordinate_System_2000", 
		DATUM["D_China_2000", 
			ELLIPSOID["CGCS2000", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Gauss_Kruger", 
		METHOD["Gauss_Kruger"], 
		PARAMETER["False_Easting", 30500000.0], 
		PARAMETER["False_Northing", 0.0], 
		PARAMETER["Central_Meridian", 90.0], 
		PARAMETER["Scale_Factor", 1.0], 
		PARAMETER["Latitude_Of_Origin", 0.0]], 
	CS[Cartesian, 2], 
	AXIS["Northing (Y)", north, 
		ORDER[1]], 
	AXIS["Easting (X)", east, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "4518"]]

Data from @esri/proj-codes

{
  "wkid": 4518,
  "latestWkid": 4518,
  "gcsWkid": 4490,
  "macro": "PE_PCS_CHINA_2000_3_DEG_GK_30",
  "name": "CGCS2000_3_Degree_GK_Zone_30",
  "wkt": "PROJCS[\"CGCS2000_3_Degree_GK_Zone_30\",GEOGCS[\"GCS_China_Geodetic_Coordinate_System_2000\",DATUM[\"D_China_2000\",SPHEROID[\"CGCS2000\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Gauss_Kruger\"],PARAMETER[\"False_Easting\",30500000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",90.0],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"CGCS2000_3_Degree_GK_Zone_30\",BASEGEOGCRS[\"GCS_China_Geodetic_Coordinate_System_2000\",DATUM[\"D_China_2000\",ELLIPSOID[\"CGCS2000\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Gauss_Kruger\",METHOD[\"Gauss_Kruger\"],PARAMETER[\"False_Easting\",30500000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",90.0],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",0.0]],CS[Cartesian,2],AXIS[\"Northing (Y)\",north,ORDER[1]],AXIS[\"Easting (X)\",east,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"4518\"]]",
  "description": "CGCS2000 3 Degree GK Zone 30",
  "authority": "EPSG",
  "version": "7.2(10.1.0)",
  "deprecated": "no",
  "areaname": "China - 88.5~E to 91.5~E",
  "extent": {
    "slat": 27.32,
    "nlat": 48.42,
    "llon": 88.49,
    "rlon": 91.51
  }
}