... attendance system.We manufacture both blank card, and pre-printed card.IC and Card Features: mifare 1k s50 cards IC ... : PVC, PET,ABS,PETG,Paper - RFID Card Surface: Matte/ gloss finish - Housing: Lamination - Working Frequency: 13.56MHz - Reading Distance: 6cm ... system.Related products- Mifare 1k,Mifare 4k card, Mifare ultralight card, Mifare compatible card, Mifare S20, Mifare Desfire, Mifare plus ...