... door with performance of security, burglarproof , anti-pry, anti-UV, soundproof 1) Material: quality cold-rolled steel panel2) Frame outer size ... - 350pcs/40'HQ, 120 - 130pcs/20'FT12) Features a) Shockproof, soundproof, warmth preserved, anti-pry, anti-drill, moisture proof b) Bright ...