Finis doors and windows is Sichuan Finis Building Technology Co., Ltd. was established in 2008. Sanho doors and windows is Sichuan Sanho Yueju Technology Co., Ltd. in 2004. From the time of establishment, it is almost the same. But from the perspective of brand promotion, Fenis doors and windows are better. Finis doors and windows belong to the first-line brand, and the brand is positioned at the high end.
Doors and windows can be identified through several aspects:
First, look at the materials used for doors and windows: aluminum materials used for aluminum alloy doors and windows, such as thickness, strength and oxide film. The wall thickness should be above 1.2mm, and the thickness of oxide film should reach 10 μm.
Second, look at the processing of doors and windows: aluminum alloy doors and windows are finely processed, with exquisite installation, good sealing performance and easy switching.
Third, look at the appearance of doors and windows: the appearance of aluminum alloy doors and windows is also a key link. The surface of aluminum alloy doors and windows is artificially oxide film and colored to form a composite film layer. This composite film is not only corrosion-resistant, wear-resistant, and there is a certain fire resistance, and the gloss is extremely high.
Fourth, look at the price of doors and windows: In general, aluminum alloy doors and windows are more expensive than inferior sliding door due to their high production costs.
Fifth, look at the performance of doors and windows: aluminum alloy doors and windows usually examine the following main performance, strength, air tightness, water tightness, opening and closing force, noise resistance, heat insulation, nylon guide wheel durability, opening and locking durability and other factors
