Strong system 凹-日-shaped refined steel curtain wall system without beam (hidden beam):

1. Heat cut-off energy-saving concealed curtain wall beam refined steel structure, high strength;

2. Refined steel concealed structure is large and transparent, with ultra narrow frame inside, which is beautiful and has good lighting effect;

3. Add more convenient operation space for later interior and exterior decoration;

4. Improve installation efficiency and reduce construction cost;

5. The construction is simple and fast, with good effect of energy conservation and environmental protection.