Experts advise: Do not buy cheap steel doors and windows
Plastic steel doors and windows are a new generation of doors and windows materials, with high wind pressure strength, airtight watertightness, air, water permeability, low heat transfer coefficient, thermal insulation, noise insulation, not easy to aging and so on.
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Experts remind consumers to pay attention:
First, do not buy cheap plastic steel doors and windows. It is understood that the life of good plastic doors and windows can reach more than 10 years, while the service life of cheap plastic steel doors and windows is only two or three years.
Second, pay attention to surface quality doors and windows. The surface of plastic steel profiles are white or ivory white, clean, smooth, smooth, large surface without scratches, bumps, welds without welding, fracture, good quality steel doors and windows should have a protective film.
Third, pay attention to glass and hardware. The glass should be smooth and free of water. The glass and plastic steel profiles are not in direct contact with each other. The sealing bead is tightly attached to the gap. The hardware is complete, the position is correct, and the installation is firm and flexible.
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