2. Ulusal Tünelcilik ve Yer Altı Yapıları Kongresi ve Sergisi 2019
(2nd National Tunneling and Underground Infrastructure Congress and Exhi...019 - Ankara -Approved by ITA International Tunnelling and Und...ı Kurultayı ile Sergisi'nin ikincisi 4-5 Aralık 2019 g&uum...uuml;nden oldukça zengin olan ülkemizde, altyapı s...CANCELLED - NAT2020 North American Tunneling Conference (Nashville - Tennessee)
Unfortunately, this event has been cancelled due to COVID-19. http://www.natconference.com/index.cfm/covid-19-updates1/
cover tunnel photo by: Matt Brown from London, England / CC BY
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