When it comes to window screens, the market currently offers two main types: aluminum alloy and plastic steel profiles. While plastic steel profiles are mainly used in engineering projects, aluminum alloy profiles are more commonly found in both engineering and home improvement sectors. The warranty for engineering-grade window screens is typically around 2 years, while home improvement versions often come with longer guarantees. For homeowners, it's generally recommended to go with aluminum alloy profiles due to their durability and better performance over time.
In addition to the frame material, it's essential to pay attention to other key components such as the mesh screen, frame thickness, bearings, and springs. Low-quality fiberglass mesh may only last a few thousand cycles of opening and closing, whereas plastic mesh tends to expand or contract easily, leading to deformation over time. To ensure longevity, it's best to choose high-quality chemical fiber mesh, which can withstand tens of thousands of movements without significant wear. The screen frame should not be too thin—frames thinner than 1.0mm may start to warp within five to six months, affecting functionality.
If the bearing is not fully sealed, dust can enter and cause operational issues. Therefore, opting for a fully enclosed, silent bearing is a better choice. As for the spring mechanism, it's usually hidden from view. Before purchasing, you can test the rewinding function by pulling the screen manually. If the spring feels too loose or doesn't retract smoothly, it’s advisable to avoid that product. Taking these factors into account will help you make a more informed and lasting choice when selecting window screens.
Pvc floor mats is a floor mat made of polyvinyl chloride resin raw materials, which is actually made of polyethylene and copolymer epoxy resin as the key raw materials, adding fillers, viscosifiers, thickeners, additives and other auxiliary materials, by symmetrical mixing, coating technology or by injection molding, extrusion processing technology. pvc floor mat - The use of pvc floor mat from the end of the 80 period into the Chinese market, in China's first and second tier cities has been widely recognized, the application is very common, suitable for: home, colleges, hospitals, clinics, office buildings, factories, shopping malls, commercial services, sports venues and other office space.
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