- Overview
- Product Description
- Company Profile
- Product Advantages:
- Certifications
- Packaging & Shipping
- FAQ
Basic Info.
Packaging & Delivery
5 days (6 - 15 Tons)
8 days (16 - 30 Tons)
To be negotiated ( > 30 Tons)
Product Description
Our expertly engineered ductile iron manhole cover gully gratings are masterpieces of design and functionality, sculpted from high-strength ductile iron. This extraordinary material ensures remarkable compressive strength and boasts exceptional resistance to both corrosion and wear. The intelligent design of these gratings typically incorporates a porous grid or strip grating pattern, allowing for optimal drainage efficiency while meticulously preventing any debris from clogging the drainage pipes. Ductile iron gully gratings are indispensable components of urban drainage systems, serving a crucial role in enhancing the beauty and functionality of our cityscapes. These adaptable products are suitable for a vast array of environments, including but not limited to high engineering works, roads, hard shoulders, urban drainage systems, gardens, and more.
Frame Size(mm)C | Cover Size(mm)B | Clear Size(mm)A | Load-bearing Capacity | Class |
560X360 | 500X300 | 460X260 | Customizable | Customizable |
600X600 | 500X500 | 450X450 | Customizable | Customizable |
680X480 | 600X400 | 560X360 | Customizable | Customizable |
850X550 | 750X450 | 700X400 | Customizable | Customizable |
980X680 | 800X600 | 750X550 | Customizable | Customizable |
Cangzhou Great Casting Technologies Limited Co.,Ltd, which was established in January 2010. The company is strategically located in Cangzhou City,Hebei Province,close to the bustling cities of Beijing & Tianjin to the north,Qilu in the south, and well-connected by Jinghu Highway to the west, Jingshan Highway, and Huanghua Port in the east. This favorable geographic position enhances transportation making it exceptionally convenient.
The company boasts three expansive production facilities spanning an impressive 30,000 square meters,supported by fixed assets worth 30 million yuan. Our dynamic team comprises a total of 180 dedicated employees ,including 30 highly skilled and professional technical personnel. We proudly achieve an annual output of various manhole cover products totaling approximately 25,000 tons.
Our portfolio prominently features the EN124 standard series ductile iron products, such as A15,B125,C250,D400,E600,F900, and other premium trench manhole covers. Furthermore, they are designed to meet and exceed national standards such as GBT23858-2009, GBT15831-2003, CJT511-2017, CJT121-2000, JC889-2001.
We proudly operate with complete production and advanced testing equipment, having established and continually refined a robust quality management system that strictly aligns with ISO9001:2000 standards.
Our unwavering commitment to quality as the cornerstone of survival and credibility as the pathway to development remains steadfast. We earnestly seek to forge partnerships with customers worldwide, aiming for mutual benefit and the pursuit of a grander vision!


1. Meticulously engineered from premium-grade ductile iron, these gratings boast exceptional resistance to both pressure and corrosion. This outstanding durability ensures their longevity, providing a reliable solution for your infrastructure needs.
2. These expertly designed gratings serve an essential function in maintaining urban cleanliness. By effectively preventing debris from infiltrating sewers, they significantly reduce blockages and promote smooth, efficient drainage operations.
3. The gratings feature a straightforward and efficient installation process, allowing workers to complete their tasks with remarkable speed and ease, enhancing operational efficiency on-site.
4. Our adaptable production processes are tailored to meet your specific requirements, offering unparalleled flexibility and customization.
Additionally, we provide pricing that delivers remarkable value, ensuring you receive the most cost-effective solution without compromising on quality.



Q1: Are you a trading company or factory?
A: We are a manufacturing factory.
Q2:Can l get samples before order ?
A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q3: How to get a quotation?
A: Provide us with the production requirements, size, quantity and arrival port, and we will promptly quote.
Q4:How can l get a quotation from you ?
A:You can leave us message, and we will reply every message in time. Or we may talk online.
Q5:What productinformation do lneed to provide?
A: You need to provide the arade, width, thickness, coating and the number of tons you need to purchase.
Q6:How to guarantee the quality of your products ?
A: We have lS09001 quality system certification , and strict detection during production.
Q7:Does the product have qualityinspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept the third party inspection absolutely.