<p>2000mm intemal dia, wall thickness not less than 170mm, Re-bar for pipe:- circumferential: 22 turns - 10mmФ for inner cage &amp; 22 tums - 10mmФ for outer cage and longitudinal: 14 nos. - 10mmФ for inner cage &amp; 14 nos. -10mmФ for outer cage, Re-bar for Collar:- circumferential: 3 turns - 8mmФ for inner cage &amp; 3 turns - 8mmФ for outer cage and longitudinal: 12 nos. - 8mmФ for inner cage &amp; 12 nos. - 8mmФ for outer cage</p>