Projects Tun Razak Exchange Bollards Contact us Project Owner Gadang Engineering (M) Sdn Bhd Completion Date 2018 Contact us Project Summary Project Scope:Supply, Installation, Testing & Commissioning of ATG Hostile Vehicle Mitigation Barriers (Bollard). Related projects Prime Minister’s Residence – Putrajaya Prime Minister’s Office – Putrajaya Istana Alam Shah – Klang