Type: Contactless Smart Card inlay Operating Frequency: 12.5KHZ,13.56MHZ or 915MHZ Material: PVC, PET Dimension: A4 210mm x297mm ,310x468mm, Max. size 520x420mm, Layout: 3x7, 5x5,3x8,4x8,4x6, 2x5,2x4, or any Customization of CR80 card; Thickness HF: 0.45mm, 0.5mm, min 0.3mm HF smart Card: normal 0.6mm , min 0.5mm UHF:0.6mm, 0.5mm Antenna HF: Pre-winding Copper Coil, Ultrasonic Embeding LF: pre-winding copper coil, UHF: AL Etching Bonding: Wire Bonding, Working temperature: -25°C ~ +55°C Store temperature: -25°C ~ +65°C Additional crafts: injet printing number or pre-printing with silkscreen,personalizing; RFID Prelam Card Inlay Sheet is half-finished product. As the most important part means the core part for ISO RFID Card. All the prelam sheets are durability and optimized read/write performance , that are all packaged clean from dust. HF Prelam, Smart PVC Cards is our hot Products.