Visual immersion experience Multi-level blood infiltration process Plasma stratified dipping and dyeing technology is used (showing three trauma forms of coagulation/splashing/leakage) Professional oxidized color matching (natural color evolution over time) Professional substrate restores the true texture Medical specification cotton yarn weaving (28×24 latitude and longitude density to restore the real bandage texture) Pre-tear treatment (broken edges can be easily torn out along the dotted line) Physical characteristic parameters ▸Material composition: pure cotton gauze + water-based dye 单 Single roll specification: 10 meters×8 cm ▸ Blood stain coverage rate: ≥85% irregular distribution 认证Certification standards: OEKO-TEX Standard 100, EN71-3