... 27dB,10mm-33dB Applications: 1) roofing for swimming pool, shopping malls, commercial streets 2) Sunshade for stadiums and bus stops, gazebo, ... , gateways, garages 4) Sound and heat insulation wall for expressways and houses 5) Instead of glass,decoration door, ... curtain wall6) Soundproof material for partitions 7) Unbreakable material for glazing widows, roof glazing.8) Lighting ...