... 45mm - 1.0mm,length 2.8mm,2.9mm,3mmThe furring ceiling system is a suspended steel framing system,clad with gypsum ... boards sheets. Its grids are concealed behind the ceiling board. The finishing surface would be smooth and may receive ... usually used as the surface material of furring ceiling system. Compared with combustible wooden ceiling,our products are made of incombustible and durable ...