Dioscorea cirrhosa Li á ng (Dioscorea cirrhosa) is a perennial herb with underground tubers. Tubers contain gum, which can be used to dye cotton and hemp fabrics, such as "Bellow Silk" (also known as "Xiangyun Yarn" and "Copying Yarn"). Silk bó is silk fabric. Therefore, the name of the store selling Hangzhou mulberry silk can be called Langbo Square.
Mulberry silk, also known as "natural silk" and "silk cotton" by many manufacturers, is a continuous long fiber which is solidified by silk liquid secreted by mature silkworms when they cocoon.