Product Introduction：
Expansion glue injection corner bracket is a type of commonly used accessory in the manufacturing process of aluminum alloy doors and windows. Main function is to tighten the corner bracket through screws at the corner of the door and window, so that the corner bracket expands to have no gap with the material cavity, and can also play the role of automatic leveling, making the corner smoother. Injecting glue increases the sealing, stability and durability of doors and windows.
