I wonder if there are any materials lost in Shanhai.

It is speculated that the missing materials in the Map of Evergreen Trees in Mountains and Seas are: tung wood, tung oil, tung flowers, tung leaves, tung fruits, tung branches and so on. Paulownia is the most important material, which can be used to make furniture, musical instruments and buildings. Tung oil is an extract of tung wood, which can be used to coat wood. It is waterproof, antiseptic and durable. Tung Hua, Tung Ye and Tung Zi can be made into Chinese herbal medicines, which have the effects of clearing away heat and toxic materials, moistening lung and relieving cough. Tung tree branches can be used to make firewood, bamboo sticks and other daily necessities. In a word, I think the lost information in the evergreen tree map of mountains and seas is very rich and can be used in various fields and uses.