Caption: A great explanation by the science show on what Tech Metals are and what they are used for. Credit: Electio Invest Link to this video Email & IM: HTML Code: Video Information Headline: Electio Invest - Tech Metals Explained Source: Electio Invest Release date: Friday Jan 2, 2015 Release time: 12:17 am City:: Dubai State:: Dubai Country:: United Arab Emirates [AE]