Source: EPSG:4756 — VN-2000
geographic system using latitude and longitude on an ellipsoid · Area of use: Vietnam - onshore
+proj=longlat +ellps=WGS84 +towgs84=-191.90441429,-39.30318279,-111.45032835,0.00928836,-0.01975479,0.00427372,0.252906278 +no_defs +type=crsMore about EPSG:4756 →