Workers show the tenacity of a piece of thin glass in a factory in Luoyang, central China's Henan Province, March 26, 2015. A glass producing company in Luoyang has broken China's thinnest glass record it keeps at 0.33 millimeters with a new kind of glass with a thickness of 0.25 millimeters, which is also good in tenacity and can satisfy the need for the screen of cellphones, laptops and navigation machines. (Xinhua/Zhang Xiaoli)