Filters Discs also named wire mesh circles, screen packs,  is made of all kinds of wire mesh, been cut and desired into different shape and sizes.

Copper wire mesh is make of copper wire

Type:  brass wire mesh, phosphorous bronze wire mesh (PB wire mesh) red copper wire mesh

Knotted mesh also named knotted netting , it is make of wire cable or wire rope . widely used for facade decorative, security Fencing, Division screens, zoon enclosures, balustrade Infill panel etc.