| Guangzhou–Maoming railway | 
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 | 
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| Status | Operational | 
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| Termini |  | 
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| Type | Heavy rail | 
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| Opened | 1904 | 
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| Line length | 404.2 km (251 mi) | 
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| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge | 
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| Operating speed | 120 km/h (75 mph) | 
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The Guangzhou–Maoming railway or Guangmao railway (Chinese: 广茂铁路; pinyin: guǎngmào tiělù), is a railroad in Guangdong Province of China between Guangzhou, the provincial capital, and Maoming.  The line has a total length of 404.2 km (251 mi) and comprises the Guangzhou–Sanshui railway (Guangsan line), built from 1902 to 1904, and the Sanshui-Maoming railway (Sanmao line), built from 1958 to 1991.  Major cities and towns along route include Guangzhou, Sanshui, Zhaoqing, Xinxing County, Yangchun, and Maoming.