A speaker grill is a protective cover or mesh that is placed over a speaker to protect it from damage and to improve the sound quality.The grill is usually made of metal or plastic and is designed ...
According to different materials, we have different window screen meshes. They are metal mesh window screens, nanotechnology window screens, PVC window screens, fiberglass window screens, et...
In recent years, with the country’s environmental management, major coal yards, gravel yards, mixing stations and other places with dust need to install dustproof walls and install windproof ...
1. Perforated mesh can be used as an environmentally friendly noise control barrier in transportation and municipal facilities such as highways, railways, and subways that pass through urban areas,...
Scientists have now devised a window screen that might help combat indoor pollution in cities like Beijing. A recent study conducted in the capital showed that the screens – which are sprayed with...
With air pollution a growing concern in many parts of the world, it is important to take steps to protect ourselves and our families from the harmful effects of smoke. There is actually a simple so...
