Vinh Tuong SERRA is a high load bearing concealed ceiling frame, employed in world-class projects such as those at Kumho Asiana Plaza (Ho Chi Minh City), Hyatt Regency (Da Nang), and Keangnam Hanoi Plaza (Hanoi) Key facts Direct fixing type of concealed ceiling system, including a furring channel firmly connected by tenons to the carrying channel Application Suitable for ceilings that require high load bearing or multiple layers of board Manufacturing Standards American Standard ASTM C635:13a