Bonding is a common process in handicraft production, that is, "bonding fixed components with cementing materials", which is the most common in pearl products.

It is difficult to set beaded or nearly spherical gems, such as pearls, with pointed inlay, nail inlay or edge inlay. In the past, people often used the method of adhesive mosaic to "mosaic" it. In fact, this method only uses special glue to stick the gem to the metal bracket, which is often not strong enough.