Bird's Nest: The saliva spit by swallows on an island is divided into official swallows. It is the first swallow's saliva, and the price is about 1 10,000 kilograms. The last swallow's saliva is also about 1 10,000 kilograms. (Theoretically, official swallows are better than blood swallows, but in hotels, blood swallows are better than official swallows, and the price is more expensive because official swallows are rare. Basically, they are bought in the market.
Abalone: It's a shellfish from the sea, which is also found in Dalian. The best one to call Dalian abalone is South American net abalone. Now there are few mainland abalone in Hong Kong, not to mention it, because it was picked by Yang Guanyi.
Shark's fin: It's the fin variety of shark Yao fish, and many of them are the most common ones.