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Businessman waving, pointing at solar panel, showing like

Engineer looking at camera and touching helmet

Male engineer and worker in a uniform are checking solar batteries. The are working on energy conservation project. The men are concentrated and are discussing details.

Engineer using gadget and looking at camera

Businessman waving, pointing at solar panel, showing like

Engineer looking at camera and touching helmet

Engineer using gadget and looking at camera

Businessman touching forehead and drinking water

Businessman drinking coffee and smiling at camera

Smiling engineer showing model of solar panel