30 Years On, Still Protecting Istanbul: Rainwater Grates at Süleymaniye Mosque When it comes to preserving Istanbul’s cultural treasures, every detail matters—even beneath your feet. For three decades, our rainwater grates have been quietly protecting the grounds of the iconic Süleymaniye Mosque, enduring the elements and heavy foot traffic without missing a beat.
Cast Iron D400 Manhole Covers: A Reliable Choice for Modern Infrastructure A D400 manhole cover is a heavy-duty cast iron access cover designed to withstand loads up to 400 kN (approx. 40 tonnes), as specified by the EN 124 standard (Class D400). Manufactured from ductile cast iron (EN-GJS-500-7), it offers high strength, resistance to deformation, and long-term durability.
Ductile Iron Manhole Covers and Plastic Manhole Covers: Which is the Best Choice for Your Infrastructure Project? In infrastructure projects involving heavy vehicle traffic, harsh weather conditions, and long-term usage, the durability of the covers and grate systems used is of vital importance. In urban roads, industrial areas, organized infrastructures, and public projects, components such as manhole covers, manhole systems, and stormwater grates play a critical role in terms of both load capacity and safety. In this context, ductile iron infrastructure products offer unrivaled solutions in terms of durability, long lifespan, and reliability.