Wood is being billed as the answer to creating greener cities -- lightweight and sustainable, it is even said to be more fire resistant than steel.
원문출처 : http://www.cnn.com/2016/04/26/design/wooden-skyscrapers-timber-trend-catching-fire/index.html
원문출처 : http://www.cnn.com/2016/04/26/design/wooden-skyscrapers-timber-trend-catching-fire/index.html