light transmittance rate is controlled with 0-90% for the products diffrent colors

anti-impact strength is 250-300 times as general glass and 2 times as stalinte

with the test of national GB8625-88, the products are class B fire retardance

the surface is treated by UV  weatherproof to avoid polycarbonate fatigue and turning yellow resulted from ultraviolet radicatin of sun'e ray

specially with