1.5 layer POF film 2.Good service & good quality ... generation of traditional PVC shrink film, It is widely used in food, medicine, beverage, alcohol, electronic element, and video ... below-50 degree celsius, adapt to storage and transport in cold weather.5. Environment-friendly, nontoxic and meets US. FDA standard6 ... ≥55 TD ≥55 4 FRICTION COEFFICIENT ≤0.35 5 HEAT SEALABLE STRENGTH(N/mm²) ≥40 6 HAZE(%) ≤3 ...