Certificates | Compact Sliding Door Closers & Glass Patch Lock Sets Manufacturer | D&D

D-U-N-S Certificate | D&D Builders Hardware Co. located in Taiwan, is a professional custom hardware manufacturer with rich experience in producing the OEM/ODM door and window hardware, building hardware and automotive parts according to customers' individual needs and designs.

D-U-N-S Certificate


Company and products Certificates

D&D Builders Hardware Company is accredited and registered by TÜV Rheinland, D-U-N-S.

Also, based on our customers’ needs, we have applied…
*UL listed for our Exit devices.
*CE certificate, SGS certificate, and RoHS compliant for our SLIDEback sliding door closer.
Besides, SLIDEback sliding door closer and Glass Patch Lock is our own patents.

Below are all of our certificates for your reference.
If there is other information needed, please just feel free to contact us directly.

Certificates | Compact Sliding Door Closers & Glass Patch Lock Sets Manufacturer | D&D

Based in Taiwan since 2002, D&D BUILDERS HARDWARE CO. has been a door closers and door accessories manufacturer. Our main self sliding and glass door hardware, include Slide Back Sliding Door Closers, Self-Closing Door Closers, Deadlocks, Exit Devices, Glass Fittings, Deadlatches, Electromagnetic Locks, Glass and Wooden Door Floor Springs, Panic Devices, Panic Bars and Deadbolts, which are TÜV Rheinland & UL certified.

We have extensive and rich metal processing, plastic and rubber processing experience, such as: stamping, casting, die casting, forging, extrusion, CNC turning parts, Machining parts, plastic injection, rubber compression, transfer molding and injection molding. If the products what we produced do not meet your quality requirements, you do not need to pay. With more than 18 years experience, D&D is specialized in handling OEM projects and various industrial processes, such as designing, molding, plastic injection, rubber injection, metal machining, stamping, deep drawing pressing, forging, die casting, powder metallurgy, CNC machining and related fabrications.

D&D has been offering customers high-quality door closer hardware, both with advanced technology and 15 years of experience, D&D ensures each customer's demands are met.