(b) acid: fresh mackerel from the mountains, fermented naturally for six months and fermented naturally; as a leading province in the province of anhui, the country is known as an integrated catering chain of brands, which brings together all four foods, extracts the most distinctive and excellent products, develops cluster brand incubation, product development, marketing planning, new media campaigns, logistics distribution, supply chain systems, operating systems, and a large catering chain with a combined system. Business culture: the sky river and the ocean, come and go