PURPOSE: To fold up a net around iron wires by connecting sheet like metal nets each other, in which vertical wires and horizontal wires are orthogonally crossed and geometrically arrayed and intersecting points are welded, at the end part of vertical wire and/or horizontal wires with iron wires.

CONSTITUTION: Vertical wires and horizontal wires are orthogonally crossed/ geometrically arrayed and intersecting points are resistance welded, thus a sheet like metal net is constructed. Sheet like metal nets each other are connected at the end part of each vertical wire and/or each horizontal wire with iron wires, the connected net can be folded up to the dimension of one sheet of sheet like metal net around iron wires. Accordingly, the equipment, transporting method, execution of work and storage place same as conventional ones are used, by spreading folded up one at execution of work, desired product dimension is easily obtained, improvement of work efficiency and working environment are achieved.