Folding border Screen Mesh:

Materials black steel wire, white steel wire, lead silk, stainless steel silk etc . 
Weaving and Characteristics Crimped first then weaved, two-way alternate-bending, bending engaged upon, flattened bending, two-bending, bending wave at one-way.
Common materials for crimped screen: Galvanized steel or stainless steel.
Woven Wire Screen Types: Slot mesh screen is used when increased throughput is required or when improvement in non-blinding qualities is needed. This arrangement has greater open area than square opening screen.
Long slot opening wire mesh with double shute wire allows increased open area than single shute yet retaining a well locked stiff mesh.
Slot opening wire mesh with triple shute has greater open area than with simple oblong mesh. The greater length of unsupported wire enables slight vibrations to be set up which gives the mesh excellent clearing properties