https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
Sunbestrfid RFID On-metal Tag

Sunbestrfid RFID On-metal Tag

Sunbestrfid Technology
Region: China
Update: 05/05/2011
Key Specifications
Features: 
● RFID on-metal tags embedded with 125K or 13.56M chips 
● Cards include EM, TEMIC, MIFARE 1 and ICode SLI varieties 
● Diameters of 11 to 50 millimeters or customized 
● On-metal tags specifically designed for metal products and equipment management
https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions