Shijiazhuang Smart Card Science & Technology Company launches region-wise integrated card, China June 6, 2018 | Asia Pacific News Shijiazhuang Smart Card Science & Technology Company has launched the Beijing-Tianjin-Hebei Interoperability Card that can be used for fare payment on bus and subway systems in 190 cities in China... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password