Wedge wire screen, also known as Johnson screen, is composed of stainless steel wound wire and stainless steel supporting wire. It is produced on an automatic machine. The supporting wire is installed in the proper position of the machine tool, and the winding wire is welded to the supporting wire while winding spiral. Wedge-shaped wire wound screen with outstanding chemical stability and corrosion resistance is the most popular type of screen. The high strength stainless steel wedge wire screen has a longer service life and saves cost for customers. https://www.afilterscreen.com/PRODUCT/Wsp/9.html