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Sven Tetzlaff

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ceec2013-5896.jpg Prof. Yin ZhiqiangThumbnailsTobias SchwindtProf. Yin ZhiqiangThumbnailsTobias SchwindtProf. Yin ZhiqiangThumbnailsTobias SchwindtProf. Yin ZhiqiangThumbnailsTobias Schwindt

Solar expert, Asia Editor "Sun & Wind Energy" Magazin, Freelance Photo Journalist, MoB Charlotte Green Co. Ltd.