DOOR CLOSER A door closer is a mechanical device used to automatically close a door after it has been opened. It is typically installed at the top of a door and works by using a spring or hydraulic mechanism to control the speed and force of the closing action. Door closers are commonly used in commercial buildings, offices, and other high-traffic areas to ensure doors are securely closed, improve energy efficiency, and maintain security. They can also help reduce the wear and tear on doors and frames. There are different types of door closers: Hydraulic door closers: Use fluid to control the closing speed. Spring-loaded door closers: Use a spring mechanism to close the door. Pneumatic door closers: Use air pressure to regulate the closing speed. IF ANY QUERY CONTACT SOHAN LAL GUPTA & CO. MOBILE NUMBER:8650333361