Filtration technology has been used in production in ancient China, and paper made from plant fibers was already available in 200 BC.
The filter is an indispensable device on the conveying medium pipeline.
Like the metal speaker mesh made of aluminum alloy, the metal speaker mesh made of stainless steel can also be used to etch a complicated pattern of mesh arrangement.
Metal speaker net made of aluminum alloy. As a breakthrough point, starting from the selection of aluminum alloy materials, the metal speaker mesh can already be achieved through the etching process, that is, chemical corrosion.
Relatively low-end cold rolled steel metal trumpet mesh. The metal horn grille of cold-rolled steel is widely used in some early BBA models.
At present, there are two kinds of speaker nets for automotive interiors, mainly plastic and metal. Among them, plastic speaker nets account for the vast majority.