Manhole cover only MD- 10 of circular shape for 500mm dia, Manhole cover only HD- 20 of circular shape for 560mm dia, GT Cover only of rectangular shape 520mm x 560mm and 70mm thick., GT Cover only of Circular shape 660mm dia and 70mm thick., SFRC Rectangular GT Cover with frame for 450mm x 500mm, SFRC Circular GT Cover with frame for 560mm dia clear