1, tengxian: tengxian was the political, economic and cultural center at that time, and it was also an important place for business activities. There are many businesses in the city, such as cloth shops, pharmacies, tea shops, pubs, money houses, and many handicraft workshops, such as textiles, ceramics and gold and silver wares.

2. Longkou Port: Longkou Port was the main seaport of tengxian in Ming and Qing Dynasties, and it was also one of the important transportation hubs in eastern Shandong Province. There are many trade industries in the port, such as docks, freight yards, shops, hotels, restaurants and so on. And many handicraft workshops, such as shipbuilding, carpentry and bamboo weaving.