Casement Lock

Sash Window Locks / 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.

6 Series SLIDEback sliding door closer

6 Series SLIDEback sliding door closer

D&D's 6 Series SLIDEback sliding door closer is a semi-automatic style door closer. When the door is opened, the self-closing feature can make the door closed automatically, the smooth closing performs just like an electric style automatic door.The eco-friendly 6 SLIDEback sliding door closer is a non-electrified device, just add SLIDEback sliding door closer on the sliding door to have a door operate like an automatic sliding door with noise reduction, energy efficiency and saving money.

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Glass Patch Lock set with mechanical latch for interior door

Glass Patch Lock set with mechanical latch for interior door

Our glass patch lock PLI-10LR series applies for the fascinating frameless glass doors and it is a simple and elegant lever handle lock set for frameless glass door in the private environment. We developed an extensive series of glass patch lock for single action door with radius shape and mechanical latch, including dummy model, lever switch model and euro cylinder model.

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Casement Lock | Door Closer & Hardware Manufacturer | D&D

Based in Taiwan, D&D BUILDERS HARDWARE CO., since 2002, is a Casement Lock | door closer & hardware supplier. Main products, including door hinge, door handle, door lock and cylinder, door closer, door accessory and so forth.

TÜV Rheinland & UL certified door closer and hardware production from designing, molding, plastic injection, stamping, forging, die casting to CNC machining, has over 20 years with plentiful experiences in handling various architectural hardware. SLIDEback sliding door closer, the patented connecting design provides various applications for different sliding doors, and the connection and separation switching bar design allow having a door with or without auto-closed function.

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

Casement Lock

Sash Window Locks

Casement Lock - Sash lock, window lock
Sash lock, window lock

A window lock is also named sash lock to lock or unlock doors for security.

Although it is a very common and simple item which you could purchase from suppliers all around the world. However, after purchasing once or twice, you might find the quality does not meet your customers’ standard, or you are frustrated about the complaints received every day... In this case, D&D will become your best solution, we will provide the most reliable and stable items for you.

Could you please share your drawings with us? And also advise the material, quantity, finish...

We will evaluate and provide the price which you will be satisfied with.

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Press Release

  • Looking for Agents
    Looking for Agents

    We are looking for district agents and dealers, for our hot items, you're welcome to apply for if you have certain confidence and determination.

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  • 6 Series SLIDEback sliding door closer
    6 Series SLIDEback sliding door closer

    D&D's 6 Series SLIDEback sliding door closer is a semi-automatic style door closer. When the door is opened, the self-closing feature can make the door closed automatically, the smooth closing...

    Read More
  • Glass Patch Lock set with mechanical latch for interior door
    Glass Patch Lock set with mechanical latch for interior door

    Our glass patch lock PLI-10LR series applies for the fascinating frameless glass doors and it is a simple and elegant lever handle lock set for frameless glass door in the private environment....

    Read More