Certifications
Sidebar Products
Contact us
Address: Room 406,Building D,Baifuhui Technology Park,Qinghu,Longhua New District,Shenzhen,China.
Postal Code: 518048
Phone: +86-755-82838361/62/63
Fax: +86-755-82838365
Email: sales@eiseis.com
        eis@eiseis.com
        sales3@eiseis.com
        sales8@eiseis.com
        sales2@eiseis.comContact Now

News

door lock

  • Author:Helen Li
  • Source:SMQT
  • Release on :2016-07-28
      Door lock
 

The two most common types of locks in a home are simple key locks in a doorknob and deadbolt locks. Key locks contain a small cylinder that runs down the middle of the doorknob and into the door. Inside the cylinder are all the parts that work together with the key to lock or unlock the door. When the door is unlocked, a part called a tang is resting fully inside of the cylinder. When the door is locked, the tang is partially in and out of the cylinder.