京津冀城市群; Jīng (京), Jīn (津), and Jì (冀) are the common abbreviations for Beijing, Tianjin, and Hebei, respectively. It is sometimes rendered in historical context as King–Sin–Peh, also known as Beijing-Tianjin-Hebei (BJ-TJ-HB), Peking–Tientsin–Hopeh and the Capital Economic Zone