SDH BLOG

Purchase guide
Daniel Cheng

Concealed hinge VS Butt hinge, which is better?

Concealed hinge and butt hinge, which is better? there is no exact answer, we have to choose the hinge according to the using conditions. For steel doors and fire-rated doors, we recommend using butt hinges, especially for high-frequency using doors. For interior wooden doors, both are suitable, we have to choose the right hinge according to the hinge characteristics.

Read More »
product info
Daniel Cheng

3D Adjustable concealed door hinge

Hidden door hinge, SOSS hinge, and 3-way adjustable invisible hinge are some of the other names for the 3D adjustable door hinge. Learn all info about concealed hinge from this article.

Read More »
product info
Daniel Cheng

EURO Profile mortise door lock

For commercial facilities with high-frequency usage, EURO Profile mortise locks are ideal security solutions. These locks are heavy, sturdy, and constructed with highly durable materials to last for a long time.

Read More »
product info
Daniel Cheng

Euro Profile Door Lock Cylinder

The Euro Lock Cylinder, also known as a “lock engine”, Euro cylinders are currently a highly popular locking system among locksmiths and architectural ironsmiths. The

Read More »
product info
Feng, Alfred

The principle of cylinder

Overview The complete door lock system consists of mortise lock case, cylinder, level handle. The cylinder is the most important part for ensure the security.

Read More »
product info
Daniel Cheng

Standard of Hardware for Escape Doors

Fire doors and related hardware control the fire at the initial stage. If it cannot be controlled, it will prevent the spread of fireworks. Finally, it will also protect the evacuation channel and allow people more time to evacuate.

Read More »
Purchase guide
Daniel Cheng

Architectural Hardware material classification.

We can make door hardware with different material, generally, mortise door lock in stainless steel material, lock cylinder in brass material, butt hinge in stainless steel, concealed hinge in zin alloy material. Do you know the reason why we choose this material?

Read More »


Can't get enough?

We will contact you within 1 working day, please pay attention to the email from SDH.

New Client?

Get catalogue and price list.

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@sdhhardware.com”