Features: 1) Designed for use in conical shaped sanitary sewer manholes equipped with standard cast iron cover and frames 2) Materials: a) Ductile iron b) High tensile cast iron c) Aluminum alloy d) Carbon steel 3) Designs: a) Anti-slip design b) Step ends encapsulated with plastic fixing tails c) Single or double steps are available d) Major standards designs available e) Double steps have a raised side to prevent foot slippage f) As per customers\'\' drawings or samples 4) Coating: a) Surface acid anodized treatment b) Bright yellow plastic coating c) Hot diped galvanized coating d) Cold applied black bitumen 5) Different other accessories are available such as lifting keys, manhole cover locks, drainage and air release holes, and sealing gaskets