ZTZ LLC. Type Management System Certificates Standard ISO9001:2015 Scope Production, supply of spare parts for steam and gas turbines, for auxiliary equipment of power plants. Address Verbnaya str., 27, lit. A, office 515-1, St. Petersburg, 197375, Russian Federation Certificate Number Q24.1100193 Status valid Certificate issue date 12/05/2024 Certificate validity 12/05/2027