Beykoz Nun Schools – Kalyon İnşaat Project Completed. Konstruksi Bilgili 3 years ago BEYKOZ NUN SCHOOLS – KALYON İNŞAAT Galvanized sheet with 2x2cm dimensions and 2mm thickness was cut, bent and mounted on the edges. 2cm thick to the floor EPDM MULCH decking was done. Wire fence repairs and installations. Project Pictures: Project Video: