Nanbei Expressway is an important section of Guihai highway in Guangxi.This section is 99 km long, from Nama to Qinzhou.It is 33.5 meters wide.The highest speed reaches 110 km per hour.

• 南北高速公路是广西桂海高速公路的重要路段；目前开通的这一段长99公里；从那马到钦州；宽度达33.；5米；最高时速达110/小时