supply fencing material for plantation centers-barbed wire fencing material barbed wire , 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 boards 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 iso - 9001:2015 with up to date amendments. , hooks - 7 no., top hook should be provided 100 cm below the top of poles, and bottom hook should be provided 500 cm above the bottom of poles. the central distance between the top and bottom hooks shall be equally divided to fix remaining hooks. manufacturing - in order to ensure desired compressive strength, rcc fencing poles should be compacted with the help of platform vibrators, surface should be uniform and free from voids. the concrete cover over the reinforcement should not be less than 1.5 cm.