barbed wire fence is made of barbed wire
materials: low carbon steel, stainless steel wire etc.
surface treatment: electro galvanized, hot dipped galvanized, pvc coated,etc.
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.