... number60,80,88MaterialExtruded PVC or UPVCFeatureHigh UV-resistant, good aging resistant, super solarization resistant, never fade in ... insulation,4. Sound insulation5. Anti-aging6. High impact resistance7. Good waterproof8. Easy to clean9. Corrosion resistance10. Scientific ... , MPa≥1960Oxgen index,%≥38Low temperature drop weight impact test≤1High-low temperature dimension reciprocal change rate ...