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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. 

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Heavy Duty Door Hinge

From the name of heavy duty hinges, you can know that the hinge is suitable for heavy doors, so it can be used in many places. Heavy duty hinge can be also called commercial door hinge, stainless steel heavy duty hinge, fire rated hinge, 4 ball bearing hinge, etc. The heavy duty hinges also consist of exterior heavy duty door hinges and narrow heavy duty hinges. It is suitable for heavy weight door, double swing door, fire rated door, wood door, metal door, single door, steel door of commercial or residential application. The material of heavy duty gate hinges can be stainless steel 316, 304, 201 etc. If you have any questions about heavy duty hinges, you can contact us at any time.

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 +86 139 2903 7292


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