With the development of science and technology, materials in the construction industry are constantly changing, and various new types of materials and door and window accessories are applied to building doors and windows. And window types have also developed greatly. Common types include casement windows, sliding windows, suspended windows (divided into upper and lower suspended windows), inward opening and inward tilting, integrated windows, and sliding windows. Each window type is suitable for different occasions and uses different accessories. Today, the editor will focus on explaining the selection of commonly used hardware accessories for doors and windows.