How long will the written notice from Shanghai Railway Bureau last?

15-30 days. According to the information in the recruitment announcement of Shanghai Railway Bureau, Shanghai Railway Bureau will notify the written test on 15-30. Shanghai generally refers to Shanghai. Shanghai, referred to as "Shanghai" or "Shen" for short, is a provincial administrative region, municipality directly under the Central Government, national central city, megacity and core city of Shanghai metropolitan area in People's Republic of China (PRC), and is an international economic, financial, trade, shipping and scientific and technological innovation center of China approved by the State Council.