Filament inlay, also known as fine gold craft, is a traditional handicraft of Han nationality with a long history, which is mainly used to make royal ornaments. It is a combination of filigree and mosaic. The filament is made of gold, silver and copper, and it adopts traditional techniques such as kneading, filling, saving, welding, weaving and stacking. There are techniques such as frustration, shovel, hammer, boring, smashing, collapsing, squeezing and embedding. Originated in the Spring and Autumn Period and the Warring States Period, an exquisite filigree mosaic handicraft is often a combination of various techniques, and the production process is complicated. First, it should be made into a tire shape, then welded into a semi-finished product, and then pickled, blue-burned (glazed), gold-plated or silver-plated, pressed bright and inlaid with gems.

This kind of bracelet is unique in the present market.