http://www.core77.com/posts/56917/Finnish-Company-Develops-Laser-That-Can-Paint-Colors-Onto-Metal
Cajo lasers paints colors to metal surface with lasers and without using pigments.
http://www.core77.com/posts/56917/Finnish-Company-Develops-Laser-That-Can-Paint-Colors-Onto-Metal
Cajo lasers paints colors to metal surface with lasers and without using pigments.
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