A White Metal Door Handle is the component of door hardware that is used to unlatch the door panel and pull it open or push it closed. The White metal is a broad term used to describe any type of metals that are alloys of a lighter color. The door handle is the handle used to open and close a door. Sometimes, White Metal Door Handle means the same thing as doorknob. But the word doorknob most often specifically refers to a handle shaped like a knob.