Metal Assets Management UHF Flexible Label Sticker is made UHF chip and anti-metal foam layer with optional paper ,pvc or pet top material . Widely uses for metal assets management , electrical equipment management , metal tube management ,etc . Full compliance with Gen 2 Class 1 and ISO/IEC 18000-6C protocol , high sensitivity data transmission and read over 100pcs UHF on-metal stickers at one time . With optional Alien H3 ,M4QT , NXP Ucode 8 chips etc .