Month: September 2022

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 »


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”

Open chat