Posupon'ko Sergei Vasil'evich
Ph. D. (Engineering), Chief of Department for Hydraulic Certification of Pipelines and Pumping Stations, «Rostovvodokanal» JSC 293 M. Gor’kogo str., 344022, Rostov-on-Don, Russian Federation, tel.: +7 (863) 286-97-89,
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