Anti-frosting value: can be reduced to about -12°C Sound insulation and noise reduction: ≧36dB decibel Service life: ≧20 years UV protection: block 99% of UV rays Thermal insulation: Heat transfer coefficient (K value) 1.3W/㎡.K　 Shading coefficient: (SC value) = 0.79 Three levels: air tightness ≥ 3 grades, water tightness ≥ 5 grades, wind pressure resistance ≥ 8 grades Structural decoration: stainless steel decorative board (color optional), fluorocarbon spraying (color optional) Frame structure: steel structure (safe and sturdy, seismic load-bearing, creative modeling, unlimited size) Span size: no limit