supply of fencing material , galvanized steel chainlink fence fabric- size 100x100 mm, dia 4.00 mm mesh wire and 4.50 mm dia line wire 2 nos. upto 2mtr. width and 3 nos. above 2mtr. standard - conforming to is 2721:2003 certificate compulsory , galvanized steel barbed wire - line wire - galvanised steel wire of 2.5 mm diameter point wire - galvanised steel wire of 2.5 mm diameter barbs - distance betbeen two barbs 75mm, the barbs shall have four points and shall be formed by twisting two point wire each two turns, tightly around both the line wire making altogether four complete turns. standard - conforming to is 278:2009 certificate compulsory