Dragon Scale Thread
After dragon scale has been melted down, it's spread thin across a long, flat surface and left to cool again. Once it has cooled, it's sliced into narrow threads that can be woven into textiles.
Colored dragon scale thread isn't especially hard to come by, but gold and silver thread (which are in higher demand for the production of cultural dress) are more rare.
Raw materials & Components
Iron blades are used to slice threads.