| Blocks | Provinces |
| I | Beijing, Tianjin, Jiangsu, Inner Mongoria, Shandong |
| II | Guangdong, Fujian, Shanghai, Zhejiang |
| III | Hebei, Shaanxi, Ningxia, Liaoning, Qinghai, Jilin, Heilongjiang | XinJiang, Gansu, Shanxi, Chongqing |
| IV | Hunan, Yunnan, Tibet, Henan, Zhejiang, Anhui, Hubei, Jiangxi | Guangxi, Hainan, Sichuan, Guizhou |
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