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Alstom concern in Oberentfelden, canton of Aargau, Switzerland. Production hall of Alstom: High voltage power switching station. The station is being isolated with gas. Electricity is being transported in hermetical red cylinders. Pictured on August 22, 2012. The Swiss Alstom group (French company) counts roughly 6000 employees and is one of the biggest Swiss industrial companies. The quarter of the branch "Grid" is in Oerentfelden and works in the field of electrical transmission and energy distribution. The company includes a worldwide operating research- and development center for gas-and steam turbines, as well as a center for combined generating plants. System design for hydroelectric plants and production of components for turbines und generators are offered. In the service field Alstom is specialized on worldwide maintenance of generating plants. (KEYSTONE/GAETAN BALLY / Keystone)