Made of premium zinc alloy, which is sturdy and durable. Hinge mounted in the door leaf, opening angle of 180 degrees, after closing hinges are not exposed. Hinges open a full 180 degrees and have a laminated link which ensures smooth hinge movement. Convenient to open and close, make less noise. Can be used for both wood and metal doors, suitable for boxes and cabinets or other furniture., Manufacturer: Shun Yingtong