This is our business level security metal door series. The materials are steel wood, steel, wood and imitation copper, etc. This is the security door with imitation copper, equipped with class C security lock. The security lock consists of main lock, side lock, top and ground lock; Security level is up to first rate equipped with Z-type security hinge and air tight sealing strip. The products are mainly used for the entrance doors in residential and high-rise buildings with beauty and safety.