... Width range: <= 2,100mm3) Length: Any dimension.4) Color: Clear, blue, green, opal, brown, blue green etc. ... glass and sound steel.It is an excellent material for bullet-resistant glass. Fire retardant:through national ... retardant is regarded as Grade B,with special material made could be reach American UL94 V0 fire ... Temperature°C14014Effect of SoundproofdB-20 ** PC solid sheet building material