Features: 1) High quality base paper used, even in weight per sheet 2) Evenly coated, sensitive to heat and color 3) Refinedly cut, consistent in tightness, and able to pass machine freely 4) Tight and solid in fiber structure, waterproof packing, fit for long-term preservation 5) 2 red caution lines, each at one meter from the corresponding end to help customers operate conveniently 6) Condition of preservation: ventilated, dry, clear of light 7) Temperature: ≤50°C 8) Relative humidity: ≤80% 9) Applicable to various models of heat-sensitive electrograph 10) 210, 216, 257, and other lengths Packing: Waterproof packing, cardboard box, or as per customers' requests