Photo de stock - Germany, Gelsenkirchen, The Laboratory and Service Center (LSC) of the Fraunhofer Institute for Solar Energy Systems. Laboratory technician working on the in-line machine for thin film solar cells. - GELSENKIRCHEN, GERMANY, 26/06/2013

Photo de stock: Germany, Gelsenkirchen, The Laboratory and Service Center (LSC) of the Fraunhofer Institute for Solar Energy Systems. Laboratory technician working on the.

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