Lingga is a place name located in the Lingga Islands east of Sumatra in western Indonesia. It is commonly known as Lingga to overseas Chinese. Therefore, Longyazhan bird's nest is the bird's nest produced in this place. Bird's nests are generally named using various names, such as the name of the place of production, the name of the country: such as Malaysia's name, Malayan Bird's Nest. There are also picking points such as house swallows and cave swallows. Those sent to the palace are called Gong Yan, Gong Yan, and those sent to officials are called Guan Yan, etc. Baiyanzhan is the bird's nest. Among all kinds of Guanyan, Baiyanzhan is the tenderest and less resistant to fire. Especially House Swallows. This is because in the swiftlet house, the picking time of bird's nests is the shortest (on average, they are picked once every three months).

Yanzhan

Workers select triangular or boat-shaped bird's nests from the harvested bird's nests, and then pluck them for sale. Yanzhan is taken out naturally, and its natural shape, size and color are different. But nutrition and hair are more comprehensive and ideal than Yanjiaoyanzhi. Not only is it naturally clean, thick, with big hair, dense sacs and minimal impurities.

Golden bird's nest lamp, blood bird's nest lamp, official bird's nest lamp and white bird's nest lamp are also the most representative 100% high-quality special dry bird's nest lamps.

Especially the unique first-stage swallow: it is the nest made by the swallow’s spit fluid for the first time. Since the essence of the food is the richest, it also has the most effective nutrients for beauty and physical fitness. After the third time, the hairs became more numerous and scattered.