What provinces are included in the Huang-Huai-Hai region? Where does the Huanghuaihai area refer to?

1. Huanghuaihai region includes all provinces and regions of Beijing, Tianjin and Shandong, most areas of Hebei and Henan, and Huaibei region of Jiangsu and Anhui. The Huanghuaihai region starts from the Great Wall in the north, reaches the northern foot of Tongbai Mountain and Dabie Mountain in the south, connects Taihang Mountain and Funiu Mountain in the west, and borders Bohai Sea and Yellow Sea in the east. Its main body is the Huang-Huai-Hai Plain alluvial by the Yellow River, Huaihe River, Haihe River and their tributaries, and the hilly areas adjacent to Shandong Peninsula in the south-central part of Shandong Province.

2. Industrial development in Huanghuaihai region: Huanghuaihai region has a long history of industrial development, especially after 40 years of rapid development since the founding of the People's Republic of China, it has formed an industrial system with complete categories and strong comprehensive industrial strength. Among the 40 industrial categories in China, a regional industrial complex with traditional industries such as energy, raw materials, textiles, machinery and electronics as the pillars and other processing industries developing correspondingly has been formed, with strong comprehensive supporting capacity.