Area A and Area T are the "concept of small production areas" put forward by the Great Wall of China (unlike the Great Wall produced in Yantai, the Great Wall of China is produced in Changli, Hebei).

in p>25, Huaxia Great Wall launched five series of Huaxia Portuguese Garden B, T, V, H and S on the basis of Huaxia Portuguese Garden A, which were sold in different regional markets. Among them, Zone A and Zone B are national products, Zone T and Zone V are for North China market, Zone H is for East China market and Zone S is for South China market. Recently, the focus has been extended to the small coastal area S area and the small slope top area T area.