Basic knowledge of doors and windows
1. Doors and windows are divided into several types according to their opening types: inner window, outer window, sliding window, folding window, sliding and sliding window
Windows, lifting windows, upper hanging windows, lower hanging windows, etc
2. Doors and windows are divided into several types based on material: aluminum alloy doors and windows, plastic steel doors and windows, aluminum wood windows, wood windows, etc
3. Composition of doors and windows: profiles, glass, hardware, accessories (adhesive strips, screws, etc.)
4. What are the installation materials for doors and windows: fixing plates, nails, bullets, adhesives, etc
What are the "three lines" in door and window installation: horizontal line, vertical line, and inlet and outlet line