The most important part in folding sliding windows and doors.

- Jun 08, 2018-

Many users only care about aluminum, and it is easy to ignore the hardware

      In the frameless balcony window, the wheel set is the core force component. The quality of the wheel set is directly related to the push feeling and service life of the frameless balcony window. The savvy wheel is made of bearing steel, not easy to rust, not easy to shake; the shaft connecting the wheel and the glass clip profile is also very critical, generally made of high-strength metal, and the overall "L" type structure is stronger.