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How to distinguish between good and bad broken aluminum doors and windows
The distinction between broken aluminum doors and windows can be seen from the aspects of profiles, glass and hardware.

1, see the introduction

Profile brand: Profile, as the main material of doors and windows, has the greatest fixing effect on the wall surface and determines the service life of doors and windows.

Step 2 look at the glass

Tempered glass is recommended for glass with high hardness. When the glass is broken, it will become granular and connected together, which will not hurt people.

3. Look at the hardware

Multi-lock hardware is better than single lock hardware, and the sliding support of the window must be 304 stainless steel.

Broken bridge aluminum doors and windows:

Broken bridge aluminum doors and windows are doors and windows made of insulating broken bridge aluminum profiles and insulating glass. It has the functions of energy saving, sound insulation, noise prevention, dust prevention and waterproof. , and has good watertightness and airtightness, all reaching the national A 1 class window standard, and the thermal conductivity K value is below 3W/m 2 K, which is half of that of ordinary doors and windows.

There are two main methods to generate thermal profiles. One way is to form a "heat insulation bridge" with heat insulation strips and aluminum profiles through mechanical tooth opening, threading and rolling, which is called "threading" of heat insulation profiles; The other is to pour the heat insulation material into the heat insulation cavity of aluminum alloy profile, and then remove the broken bridge metal through solidification to form "heat insulation bridge", which is called "pouring" heat insulation profile.