PROJECTION "proj=tmerc" "lat_0=0" "lon_0=106" "k=0.9996" "x_0=500000" "y_0=0" "ellps=WGS72" "towgs84=0,0,-2.6,0,0,0.26,-0.6063" "units=m" "no_defs" "type=crs" END