I think the following is the difference between the system window and the non-system window of broken bridge aluminum.

1, different raw materials

The doors and windows of the system are made of some brands of aluminum, and some miscellaneous brands used for broken bridge aluminum doors and windows are synthesized from some brands of materials.

2, the production process is different

The system doors and windows should be glued, and the broken bridge doors and windows are all made of machinery, and no glue is needed at all.

3. Different accessories

The hardware fittings of the system doors and windows are basically made in Germany, and the hardware fittings of the broken bridge doors and windows are some miscellaneous brand hardware or domestic hardware.