... cost. Can resist 8.5 magnitude earthquake. anti-shock, water proof, fire proof, anti-crack, aging The villa is build of our product ... or concrete, which has the five-proof advantage: anti-shock, water proof, fire proof, anti-crack and aging proof. And the whole construction cost is ... materials, whithout cement, without steel, without brick. MgO Architecture fire-proof building materials(made of straw)