... 2.100% factory 3.accept small order Unique Sequence Number Mifare 1K /4K Blank White Cards1.Contact IC card ... printing:Signature stripeMagnetic stripe --350Oe, 650Oe, 2750Oe, 4000OeSerial Number--ink jet, thermo printing, laser engravingUID code can be printed ... Card Other crafts:Print: offset, silkscreen, thermal printing Serial number printing: thermal or inkjet format Signature panel, Scratch off, ...