D and D provides a wide range of products for wooden and metal door applications.
such as Stainless Steel Door Hinges, Door Locks, Lever Handles, Door Closers, Exit Devices, Door Stopers, Door Bolts and Door Accessories etc, not only door hardware but also Door Opening solution.
The D and D door set product category covers mortice locks, European profile cylinders, lever handles and hinges. Since the dimensions of all these products comply with DIN standards (DIN 18251 for mortice locks, DIN 18252 for profile cylinders and DIN 18255 for lever handles), the products are compatible amongst themselves regarding their functionality. All parts of the functional units are also perfectly aligned with each other.
As a professional door viewer manufacturer in China, we provide customers various quality front door peephole and they apply to different commercial of doors. The material of door viewer is zinc alloy/brass/steel, so it can keep the original shape very well.The door viewer can also keep smooth surface for a long time, not easy to rust and can wear resistant, these two characteristics greatly reduce the possibility of become old and bad. The door peephole viewer is smooth and easy to install and use, it can bring you high security and beauty. For further information, please contact us.