/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: Metallica34 https://cdn.slidesharecdn.com/profile-photo-Metallica34-48x48.jpg?cb=1707384949 For many years, I've been involved in thermoeconics, energy efficiency and renewable energy. http://www.cemersc.org.mx