Lub hau ntswj yog ib qho cuab yeej siv los tig lub hau ntswj mus rau hauv qhov chaw, feem ntau yog nyias nyias - lub taub hau zoo li lub taub hau uas haum rau hauv ib lub qhov los yog thais taub hau ntawm cov ntsia hlau.
Beijing-Tianjin-Hebei-Lu-Jin and Shaanxi Shaanbei and northern Henan dialects are called "drivers", northern Henan is more called screwdrivers, Jiangxi, Anhui, and Hubei, Henan areas south of the Yellow River, Shaanxi Guanzhong are called "drivers" ", known as "Kai Dao" in the Midwest.
Feem ntau muaj ib lo lus (muab kos npe) thiab hla (kos npe zoo). Tseem muaj cov hexagon screwdrivers, nrog rau sab hauv hexagon thiab sab nrauv hexagon.
