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English 
The main hardware accessories for sliding windows include pulleys, hook locks, and crescent locks; The main hardware accessories for casement windows include linkage handles, sliding braces, chain braces, wind braces, etc.
Development status of domestic smart window market. With the development of society, people's housing standards continue to improve, and there are more and more high-rise buildings.
Casement inner inverted windowA horizontally open and inwardly inverted window is a window that rotates the handle of the window to drive the connecting hardware mechanism inside the window, causing the dry locking handle at the window to be vertically downward.
The composite profile with heat insulation function is formed by building aluminum alloy profile and building rigid plastic heat insulation strip through structural join through processes such as hobbing, threading and rolling.
