1, high-quality galvanized steel profiles with high temperature electrostatic spraying, rust resistance, corrosion protection for 20 years 2, indoor installation, convenient and avoid aerial work, free of security risks 3, load-bearing 100KG, and provide composite fire-resistant glass and monolithic fire-resistant glass two structures 4, design and installation program to implement lightning protection grounding process Physical property: 1 ,fire resistance performance: 1 hours 2, air tightness performance: 8 3, watertight performance: 7 4, wind resistance performance: 8 5, insulation performance: 6