Which province has more immigrants from Shanghai?

When Huaibei first discovered the coal mine, many Shanghai immigrants went there to make a fortune, and now there are many Shanghainese.

Coincidentally, Huaibei is a mountain city, and the city is built at the foot of the mountain.

I hope it helps you.

I have never heard of the post office. I've heard the boss talk about the history of Huaibei, and I only know the fur. Xiangshan is a national protected forest park with good scenery. Sorry, I can only help you so much. . .