tender for fencing material (barbed wire) , fencing material barwed wire - , a) galvanized steel barbed wire- mesh wire - galvanised steel wire of 2.5 mm diameter point wire - galvanized steel wire of 2.5mm diameter barbs - distance between two boards 75mmm, the barbs shall have four points and shall be formed by twisting two point wires each two turns. tightly around both the line wires making altogether four complete turns. standard - conforming to is-278-2009 , b) smm 260205 galvanized steel barbed wire typeb-1 : the barbs shall have four points and shall be formed by twisting two point wires each two turns, tightly around one line wire making all together four complete turns line wire 2.5mm point wire 2.5 mm distance between two barbs 75 mm, conforming to is:278-2009