Custom Manhole Covers for Every Project and Environment
We provide custom ductile iron and composite resin manhole covers, cable trench covers, storm drain grates, and anti-clogging baskets. Suitable for municipal roads, industrial parks, drainage systems, power facilities, and communication networks, with customizable sizes and designs.
about Us
Expert in Ductile Iron & Composite Resin Manhole Covers
Shandong Shengxin Casting Co., Ltd. is a modern enterprise integrating R&D, production, sales, and after-sales services, committed to providing high-quality, cost-effective manhole covers for domestic and international customers. Our production base is located in Liaocheng, Shandong, equipped with standardized workshops, modern finished product warehouses, and complete office facilities, with an annual capacity of 21,000 tons.
Focused on R&D and production of high-quality ductile iron and composite resin manhole covers, serving domestic and international markets.
- High-standard quality management system.
- Extensive domestic and international market coverage.
- Professional Technical Team with Extensive Expertise and Experience.
Popular Products
Recommended Popular Products
Carefully selected high-quality ductile iron and composite resin manhole covers, ideal for all infrastructure projects.
Our Advantages
Core Competencies & Technological Strengths
Shandong Shengxin Casting uses advanced technology and strict quality control to deliver reliable, cost-effective infrastructure products.
Technology & Quality
Advanced production technology and strict quality management system ensure every product is stable, reliable, and suitable for various complex environments.
International Certification
Products comply with EN124 and other international standards, certified to meet global market access and infrastructure requirements.
Broad Market Potential
Rapid infrastructure development in Africa, the Middle East, and Southeast Asia creates stable and significant market demand.
Cost-Effective Solutions
Direct supply from manufacturer eliminates intermediaries while ensuring reasonable partner profits, offering highly competitive prices.
Flexible Cooperation Models
Offers OEM/ODM customization, small-batch trial orders, and rapid large-scale production with flexible solutions to meet diverse client needs.
Comprehensive Support
Provides product selection guidance, installation training, after-sales service, and logistics support to ensure smooth and efficient cooperation.
Quick Customized Solutions
Contact us with your product requirements or project details, and our professional team will promptly provide tailored solutions and quotations to support your project.
Why Choose Us?
Professional Manufacturer of Ductile Iron and Composite Resin Manhole Covers
With advanced technology, strict quality control, and extensive international experience, we provide high-quality, reliable manhole covers and infrastructure products, offering flexible customization and comprehensive support to meet diverse market and project needs.
Product Center
Reliable Manhole Covers in Various Specifications
Spheroidal Graphite Cast Iron Manhole Cover
High-strength spheroidal graphite cast iron manhole cover features excellent load-bearing capacity, impact resistance, corrosion resistance, and durability. Its anti-slip surface and anti-theft design make it suitable for municipal roads, industrial areas, residential neighborhoods, and utility inspection wells, providing a reliable and long-lasting solution for a variety of infrastructure applications.
Composite Resin Manhole Cover
Lightweight, corrosion-resistant, and durable manhole cover, suitable for urban roads, parks, residential areas, and utility inspection wells.
- Lightweight, strong, and corrosion-resistant.
- Anti-slip and safe, suitable for diverse applications.
Manhole Cover Accessories
Our manhole cover accessories include a full range of components for installation, maintenance, and secure operation, such as locking mechanisms, rubber rings, and fasteners. Designed for durability and compatibility, they ensure safety, stability, and long-term performance across municipal, residential, and industrial infrastructure projects.
Sewage Interception Basket
High strength, corrosion-resistant
Case Studies
Product Application Case Studies
Showcasing applications of high-quality manhole covers and drainage products worldwide.
01
July 2024
Dubai Construction Co., UAE
High-strength cast iron manhole cover with load-bearing, corrosion resistance, anti-slip, and noise reduction. Suitable for municipal, residential, and commercial underground wells.
- Location : Jebel Ali, Dubai, UAE
- Recommended Products：Spheroidal graphite cast iron square manhole cover
04
July 2025
Ghana Municipal Works, Ghana
Lightweight, strong, corrosion-resistant resin manhole cover with anti-slip, flame-retardant, and anti-theft design for light-load areas.
- Location :Accra, Ghana
- Recommended Products：Composite resin square manhole cover
08
July 2025
Philippines Public Works
Ductile cast iron rain grate with high strength, corrosion resistance, anti-slip surface, and efficient drainage; fits multiple load grades and prevents displacement, noise, and theft.
- Location :Manila, Philippines
- Recommended Products：Spheroidal graphite cast iron rain grate
Product Applications
Product Application Scenarios
Showcasing manhole covers and drainage products in various infrastructure projects.
Municipal Transportation
Urban Renewal
High-Speed Power
Comprehensive Services
faq
FAQ – Frequently Asked Questions
Find answers to common questions about our products and services.
What products does Shandong Shengxin Casting offer?
We provide ductile iron and composite resin manhole covers, cable trench covers, storm drain grates, and anti-clogging baskets, suitable for municipal roads, industrial parks, drainage systems, power facilities, and communication networks.
Where are your factories located and what is your production capacity?
Our factories are in Liaocheng, Shandong Province, China. The ductile iron factory covers 48 mu (4,300 m²) and the composite resin factory 19 mu (2,000 m²). Annual production capacity is 21,000 tons, ensuring fast, stable delivery for large and multi-specification orders.
Do you offer customized products?
Yes, we provide OEM/ODM services, including size, design, color, logo, and casting style customization to meet your brand and market requirements.
Which regions do you export to?
Our products are exported to Southeast Asia, the Middle East, Africa, and other regions. We have long-term partnerships with local importers, engineering contractors, and municipal units.
What cooperation models do you offer for partners?
We support direct supply for distributors and retailers, project-based bulk supply for contractors and governments, trial orders for market testing, and flexible large-scale production.
What after-sales and technical support do you provide?
We provide product selection guidance, on-site installation training, technical assistance, customized packaging, customs documents, and dedicated logistics support to ensure smooth delivery and operation.
What are the specifications and standards of your products?
Our products comply with EN124 international standards, covering A15 to F900 load classes, with high strength, anti-corrosion, anti-theft, anti-slip, and noise reduction features. Load-bearing capacity ranges from 40 to 90 tons.
What materials are used in your manhole covers?
We provide comprehensive technical support, including application guidance, process optimization, and after-sales problem resolution.
How do you ensure product quality?
Our factories implement standardized casting, heat treatment, and a full-process quality control system, with rigorous inspections from raw materials to final delivery.
Can your products withstand extreme environments?
Yes, our products perform reliably under high temperature, high humidity, salt spray, and heavy load conditions, maintaining safety and durability.
What industries are your products used in?
Products are widely used in municipal engineering, real estate, industrial parks, urban and rural infrastructure, telecommunications, and water treatment systems.
How do you handle international shipping?
We collaborate with reliable logistics partners, provide complete customs documentation, and optimize shipping routes for timely, safe delivery.
News
Company & Industry News
Stay informed on the latest developments and industry trends in the manhole cover sector.
Corrosion-Resistant Covers See Strong Market Outlook
As urbanization and industrialization continue to accelerate globally, the demand for durable and reliable infrastructure
Ductile Iron & Composite Covers Boost Durability
Infrastructure development is the backbone of urban growth, and among the many components that ensure
Urban Infrastructure Drives Manhole Cover Demand
As urbanization accelerates across the globe, the demand for high-quality infrastructure components has surged, with