<p>1600mm internal dia, wall thickness not less than 140mm, Re-bar for pipe:- circumferential: 21 turns - 10mmФ for inner cage &amp; 16 turns - 10mmФ for outer cage and longitudinal: 12 nos. - 8mmФ for inner cage &amp; 12 nos. 8mmФ for outer cage, Re-bar for Collar:- circumferential: 3 turns - 8mmФ for inner cage &amp; 3 turns - 8mmФ for outer cage and longitudinal: 8 nos. - 8mmФ for inner cage &amp; 8 nos. - 8mmФ for outer cage</p>