PROJCRS["Kertau (RSO) / RSO Malaya (ch)",BASEGEOGCRS["Kertau (RSO)",DATUM["Kertau (RSO)",ELLIPSOID["Everest 1830 (RSO 1969)",6377295.664,300.8017,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4751]],CONVERSION["Rectified Skew Orthomorphic Malaya Grid (chain)",METHOD["Hotine Oblique Mercator (variant A)",ID["EPSG",9812]],PARAMETER["Latitude of projection centre",4,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8811]],PARAMETER["Longitude of projection centre",102.25,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8812]],PARAMETER["Azimuth of initial line",323.0257905,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8813]],PARAMETER["Angle from Rectified to Skew Grid",323.130102361111,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8814]],PARAMETER["Scale factor on initial line",0.99984,SCALEUNIT["unity",1],ID["EPSG",8815]],PARAMETER["False easting",40000,LENGTHUNIT["British chain (Sears 1922 truncated)",20.116756],ID["EPSG",8806]],PARAMETER["False northing",0,LENGTHUNIT["British chain (Sears 1922 truncated)",20.116756],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["(E)",east,ORDER[1],LENGTHUNIT["British chain (Sears 1922 truncated)",20.116756]],AXIS["(N)",north,ORDER[2],LENGTHUNIT["British chain (Sears 1922 truncated)",20.116756]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["Malaysia - West Malaysia onshore."],BBOX[1.21,99.59,6.72,104.6]],ID["EPSG",3167]]