Miniature electronic tags are widely used in products requiring concealed installation and small items. Glass tube electronic tags are miniature RFID tags encapsulated in bio-glass, featuring good chemical stability, small size, and durability. Their core function is to achieve unique identification and tracking of items. Examples include: smart key handles for home and vehicles; computer or communication plugs; smart MP3-USB products; smart dongles for applications or important documents; secondary encapsulated animal tags; miniature adhesive labels; and they are also suitable for RFID smart identification in firearms, helmets, wine bottles, medicine bottles, cosmetics, electric toothbrushes, molds, jewelry, chips, etc.