... true gold or silver. Size:ISO CR 80 or on demandMinimum qty:500pcsAvailable crafts: printing,embossing number ,signature panel ... serial number,hole punch,uv printing Micro-printing ,Guilloche and the rainbow fountain,Holograph, etcLow Frequency (125khz)chip EM4100 ... , medical treatment, transportation, driver management, bank, tax administration, and safety control.If you have any question to ask or any ...