... Contact IC: SLE4442, SLE4428, Simens4428, Simens5528, AT24C(32k/64k), etc RFID IC: T5567, S50, S70, T5577, TK4100, GK4001 ID, EM4100/EM4102 ... of the biggest professional manufactures of cards in China.We manufacture all kinds of cards for smart card, VIP card, barcode ...