ok. According to the public comment website, Zhangjiakou Sun Dama snack training school teaches well. Zhangjiakou City is located in the northwest of Hebei Province, at 113 51 ′ ~ 116 31 ′ east longitude and 39 31 ′ ~ 42 11 ′ north latitude, bordering Beijing in the east, Datong in the west, Inner Mongolia Plateau in the north and North China Plain in the south.