<p>700mm internal dia, wall thickness not less than 85mm, Re-bar for pipe:- circumferential: 13 turns - 6mmФ for inner cage &amp; 10 turns - 6mmФ for outer cage and longitudinal: 6 nos. - 6mmФ for inner cage &amp; 6 nos. - 6mmФ for outer cage, Re-bar for Collar:- circumferential: 3 turns - 6mmФ and longitudinal: 8 nos. - 6mmФ</p>