What are the different types of aluminum profiles used for windows and doors?

Aluminum profiles for windows and doors come in various types, each serving specific functions and designs. Common types include: 1) Casement profiles, used for side frames and meeting stiles in casement windows; 2) Mullion profiles, for vertical and horizontal structural members in window walls; 3) Transom profiles, used in the top or bottom of windows to support glazing; 4) Sash profiles, forming the main frame of the window sash; 5) Threshold profiles, used at the bottom of doors for weather sealing; 6) Header profiles, supporting the top of a door or window opening; and 7) Specialty profiles, designed for specific architectural needs like corner posts or decorative elements. Each profile is engineered for strength, durability, and compatibility with glazing and浜旈噾閰嶄欢.