Where to collect golden sand from the sea in Wenzhou?

Pharmaceutical factories and Chinese herbal medicine companies. Wenzhou's pharmaceutical factories and traditional Chinese medicine companies acquired Haijinsha, Haijinsha, the name of traditional Chinese medicine. It is the dry mature spore of Lygodium japonicum (Thunb) Sw, Lygodium japonicum (Thunb) Sw. In autumn, when the spores have not fallen off, the leaves are harvested, sun-dried, rubbed or the spores are removed, and the leaves are removed. Lygodium japonicum (Thunb) is a terrestrial climbing plant. It can reach 4 meters in height. There is a narrow edge on the leaf axis, and there are many pinnae, which are opposite to each other on both sides of the leaf axis at a short distance and are flat.