... with high quantity 1.Material: stainless iron/stainless steel/aluminum/PVC2.Size:25mm,28mm,30mm,35mm,24*26mm,50*25mm,57.9*24 ... .65mm,24*24mm......(customized design)3.Technics: offset printing with epoxy ... , can be scan by smart phone,each with unique number and qr code6.Logo: can be ... made as below picture showed16. unique ID number with unique QR CODE on each tag picture for ...