GP Concrete Engineering Kft.
Mr. Pándi 1182 Budapest Iparvasút utca 16. phone: e-mail: tpandi@beton.info.hu webpage: www.beton.info.hu
UBO Engineering B.V.
Mr. BregmannBanningstraat 3B3769 AA Soesterberg,phone: +31 346351774e-mail: info@ubo.nlwebpage: https://www.ubo.nl
Layer9
Mr Christoph WalterIndustrie-Strasse 68627 Grüningenphone:mobil:e-mail: c.walter@layer9.chwebpage: https://www.layer9.ch