rate of items , barbed and other items , galvanized steel barbed wire type b-4- 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 2.5 mm. point wire 2.0 mm. distance between two barbs 150 mm, conforming to is - 278-2009 , galvanised steel chain link fence fabric – size ( 2x10 meter, mesh size 2x2 inch, gauge - 4 mm.) , galvanised steel chain link fence fabric – size 100x100mm, dia 4.00mm mesh wire and 4.50mm dia line wire 2 nos. upto 2mtr. width and 3 nos. above 2mtr width conforming to is 2721-2003 with upto date amendments. , galvanised steel chain link fence fabric – size 100x100mm, dia 3.15mm mesh wire and 4.00mm dia line wire 2 nos. upto 2mtr. width and 3 nos. above 2mtr width conforming to is 2721-2003 with upto date amendments. , satkatha wooden polls (treated) 2 meter height and 31-45 c.m. roundness , pre stressed r.c.c. fencing poles 2.0 meter height (2.0 meter height and 10x10 cm cross section) and vertical bars shall be of 6 mm dia 4 nos. and stirrups 6mm dia bars not more than 25 cm centre to centre.