In this video, a representative at an ecology trade show presents some innovative building materials that are eco-friendly and will allow you to save some money on your energy bills. These materials are made out of gypsum cellulose and are used for insulation.
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Caption 30 [fr]: L'autre avantage de ce matériau c'est qu'en réalité, euh... Caption 30 [en]: The other advantage of this material is that in reality, uh...
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