GSP is the leading manufacturer and exporter of cast iron and ductile iron manhole covers in India for Sewerage, Drainage, Water and Telecommunications usage. We manufacture products as per globally accepted EN-124 and ASTM standards. We have state of the art in house CNC machines for pattern making wherein we can develop new patterns within 2 weeks. Our manhole covers are exported to countries like UAE, Qatar, Oman, Bahrain, Italy, Ireland, Germany, Belgium, Finland, Czech Republic, Slovakia, Greece, Canada, France and Austria.        

Our Product Range Includes:

  • Square & Rectangular Manhole Covers
  • Circular Manhole Covers
  • Recessed Manhole Covers
  • Gully Gratings
  • Carriageway / Telecom Covers
  • Catch Basin Covers
  • Gas & Air Tight Inspection Manhole Covers
  • Kerb Drain Manhole Covers
  • Surface Boxes
  • Channel Gratings
  • Valve Boxes / Meter Boxes

Size Range:

100 mm x 100 mm  Clear Opening to 1500 mm x 1500 mm Clear Opening


Grey Cast Iron –

  • ASTM A48 Class 30
  • ASTM A48 Class 35
  • EN-GJL-200
  • EN-GJL-250

Ductile (SG) Iron – 

  • ASTM A536 60-40-18
  • ASTM A536 70-50-05
  • EN-GJS-400-18
  • EN-GJS-500-7

Load Rating : 

A15, B125, C250, D400, E600 and F900


Custom LOGO as per clients requirement


Bitumen paint, Epoxy paint, Water based paint and other paint as per the RAL No provided by customers.

Other Features

Hinge provision, Locking provision, Bolting provision, Leak proof/ Water Tight using gasket and customized designs available

Manhole Covers

Grates & Frames

Recess Cover

Telecommunication Covers

Surface Box / Valve Box

Tree Grates

Step Iron