PC hood physical characteristics

1PC endurance board hood light transmittance ≥ 88% (single layer) "HB-343-76";

2PC endurance board hood air permeability: belongs to the first level "GB-7106";

3 Rainwater leakage: It belongs to the first grade "GB-7107";

4 heat transfer coefficient: K0 = 2.0W / m2 · k (double layer);

5 Wind pressure resistance: Both positive and negative pressure are Grade 1 "GB-7108";

6 Drop hammer impact performance: 3000g/m2 does not break down, does not break.