The codes of provinces and cities of ABC are as follows:
0 1 head office, 02 Tianjin, 03/09 Shanghai, 04 Shanxi, 05 Inner Mongolia, 06 Liaoning, 07 Jilin, 08 Heilongjiang, 10 Jiangsu,
1 1 Beijing, 12 Anhui, 13 Fujian, 14 Jiangxi, 15 Shandong, 16 Henan, 17 Hubei,/kloc
2 1 Hainan, 22 Sichuan, 23 Guizhou, 24 Yunnan, 25 Tibet, 26 Shaanxi, 27 Gansu, 28 Qinghai, 29 Ningxia, 30 Xinjiang,
3 1 Chongqing, 34 Dalian, 38 Qingdao, 39 Ningbo, 40 Xiamen, 4 1 Shenzhen, 44 Guangdong, 50 Hebei, 97 Hong Kong.
Generally, you don't have to fill in any bank remittance. If the code is added, the internal system of the bank is easy to operate and can quickly distinguish remittances from different places.