Double wire fence, also known as 656 or 868 fence, is woven and welded with Q195 and Q235 low carbon cold drawn steel wire, cold drawn low carbon steel wire and low carbon steel wire as raw materials, and the mesh is flat.

The mesh strength of double wire fence is a 6mm horizontal iron wire sandwiched between two 8mm horizontal wires, which ensures the mesh's damage resistance. It is often used as the fence of industrial or commercial places and sports fields, as well as the railway closed net, highway closed net, field fence, community fence and various isolation nets.