File:Refined bitumen.JPG

Summary
https://en.wikipedia.org/wiki/File:Refined_bitumen.JPG Description English: Cold refined bitumen Date	21 October 2008 Source	Own work Author	Burger Permission (Reusing this file) Public domain	I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.