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.
Door holders can be manually operated, requiring a person to place the hardware in the holding position. Other door hardware will automatically hold the door when the door is opened to a certain point where the hardware engages and holds the door.Each type of hold open device (manual, automatic) can be mounted at the opening in a couple of ways. They can be mounted to the wall, to the floor, or mounted overhead to the door and frame.
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