transparent soundproofing PC board Transparent soundproofing PC board is uses in specially the path ... sound-insulated plate,has compared to the ordinary board a better is sound-insulated effect,bears the ... SizeThe PC transparent soundproofing board LT20-1TMThickness2,3,4.5,6.0mmWidth1220,1560,1820,2050mmLength3050mmResist WeatherGeneral,indoor useProduct SizeThe PC transparent soundproofing board LT20- ...