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About Our Company
RBO delivers casting solutions with durability, precision and dependable quality.
At RBO, we manufacture cast iron and ductile iron manhole covers, frames and gratings engineered for durability, dimensional consistency and long-term field performance. Headquartered in Kolkata, we cater to municipal, sanitary, utility and infrastructure requirements across India and overseas markets.
Our footprint extends across the Middle East and Africa, with a growth vision toward major international markets. Every product is shaped around reliable craftsmanship, application-driven design and disciplined quality control.
Vision
To be recognised globally as a benchmark in premium casting solutions with strong standards in quality, innovation and sustainable manufacturing.
Mission
To deliver world-class casting products through precision engineering, continuous improvement and committed customer support.
Quality Commitment
RBO operates with an ISO 9001:2015 quality mindset focused on raw material control, process accountability, inspection discipline and consistent delivery.
Our Clients
Clients
Selection
Load test classifications for different application zones
Choose the appropriate cover class based on application, wheel load and operational environment.
A15
Pedestrian Areas
Suitable for pedestrian and cycling areas where vehicle access is not expected.
B125
Footpaths & Car Parks
Designed for footways, pedestrian zones and car parks with no heavy vehicle traffic.
C250
Kerbside Areas
Used in areas with slow moving traffic such as kerb channels and road edges.
D400
Carriageways
Appropriate for roads, industrial access points, hard shoulders and traffic-bearing lanes.
E600
Heavy Wheel Load Zones
Recommended for docks, freight yards and locations with significantly higher wheel loads.
F900
Airport & Extreme Duty
Built for the heaviest operational areas including airports and extremely high wheel load conditions.
Application-led product specification matters.
Improper class selection creates avoidable failure risk. For real infrastructure use, the load class must match traffic pattern, installation location and site duty conditions. This is exactly why the homepage structure follows the same product-selection-first logic seen in the reference site.
- Class-based guidance from A15 to F900
- Municipal, drainage, utility and industrial usage focus
- Suitable for cast iron and ductile iron supply ranges
Our Products
Core product categories
Single Seal Covers
Double Seal Covers
Ductile Iron Range
Recessed Covers
Circular Covers
Quality & Process
Structured process flow and inspection discipline support every supply.
The brochure highlights a process structure covering management responsibility, resource management, product realisation, supplier control, inspection stages and final dispatch. That matters because industrial websites in this space often look polished but say nothing useful about process discipline.
- Quality system orientation and document control
- Supplier review and raw material inspection checkpoints
- In-process inspection, final inspection and dispatch control
- Customer-focus and continuous review orientation
Contact
Let’s discuss your manhole cover, frame or grating requirement.
For municipal projects, sanitary applications, infrastructure supply and export-oriented product discussions, connect with RBO directly using the contact details below.
Office Address
21 Brojonath Lahiri Lane, Santragachi, Howrah - 711104
Manufacturing Unit
Vill-Dhaipur, PO-Khoriop, AMTA, PS-Joypur, Howrah - 711401
Email
rboironsteel@gmail.com
Website
www.rboironandsteel.co.in
