When it comes to the fire safety work in the buildings, it is inevitable to mention an important role: fire doors. The matching door hardware is the most important thing to make the fire door have the true fireproof function. Today, let’s talk about how the door hardware of D&D Hardware helps the building to solve fire safety problems.

American National Standard Institute (ANSI) ANSI 156.1 This Standard establishes requirements for butts and hinges. Cycle tests, lateral and vertical wear tests, friction tests, strength tests, finish tests, and material and dimensional requirements are included.