Efanov Ivan Aleksandrovich
Chairman of the Board of Directors, «Samarskie kommunal’nye sistemy» LLC, Candidate for a Master’s Degree, Water Supply and Wastewater Disposal Department, Samara State University of Architecture and Civil Engineering 56 Lunacharskogo str., 443056 Samara, Russian Federation, tel.: +7 (846) 336-14-02,
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