57*50mm, 80*80mm 1. 5-15 years' image life 2. pre-printed service 3. deep thermal image ,ISO certificate 4. OEM packing Thermal paper roll1) Width(mm): 57, 70, 75, 80, 114 (other size are avaliable according to the customers' requirements)2) Diameter(mm)45, 50, 60, 80, 100, 160 (other size are avaliable according to the customers' requirements)3) Core Diameter: 12,7mm(1/2"), 19mm(3/4"), 25.4mm(1" ...