- SFRCÂ (steel fibre reinforced concrete) Manhole covers available in square, rectangular & circular shape. Available in all sizes and light, medium and heavy duty material. Commonly supplied sizes are:
SIZE ( Clear Opening) mm
Square type: a) 300 x 300 b) 450 x 450 c) 600 x 600 d) 900 x 900 e) 860 x 860
Rectangular type: a) 600 x 450 b) 900 x 450 c) 900 x 1200
Circular type: a) 540 mm dia b) 560 mm dia b) 600 mm dia