- Suitable for wooden door, composite board door, metal door(aluminum, alloy, iron),or glass door.
- Suitable for the door weight:30kg, 70kg, 100kg, 120-150kg.
- Material: high grade stainless steel, or Zinc aluminum alloy.
-  Surface disposal consists of cyan antique copper by sand polishing, sand polishing steel etc, or other kinds on clients' requirements.
- Adopt import axletree and high wearable USA material, operation is balanced and super soundless，can using long life.
-  Can adjusting, fast dismantle and install, simply install to door.
- Unique design, advanced technology, makes you enjoy convenient and practical effect when using the product.