Double Surface Plating
With copper and nickel plating, it can pass 48 hours salt spray test，which effectively prevent rust.

Connection Parts in Hardness Processing
The connection parts in heat treated have high hardness, it can increase wear resistance, toughness and fatigue strength to extend hinge life.

Two Dimensional Screw
The adjustable screw is used for distance adjustment，so that both sides of the cabinet door can be more suitable