Is it true that the speed limit of Huangshan Expressway is 80?

It's true. Huangshan Expressway strictly abides by traffic rules, so the speed limit of Huangshan Expressway is 80%. Huangshan Mountain, called Yi Mountain in ancient times, is located in Huangshan City, Anhui Province, south of Anhui Province and north of Huangshan City. It spans Shexian County, Xiuning County, yi county, huangshan district and Huizhou District, starting from Huang Shiling in the east, reaching Xiaolingjiao in the west, Erlong Bridge in the north and Tangkou Town in the south.