security door 1. different color with two sides 2. open 180 degree 3. sun-proof surface 4. rock wool,fire door security doorSun-proof, Sound-proof, shock-proof, warmth preserved, anti-pry, anti-drill, elegant, smooth and silent for openingSecurity Steel Door STANDARD SIZE (mm)HEIGHT2050WIDTH960 or 860THICKNESS(door leaf)70 or 80 or 90 Main MaterialQuality cold-rolled steel sheet & stainless steel ...