- Overview
- Product Introduction
- Detail image
- Specifications
- production technology
- Application Areas
- Packaging & Shipping
- Company Profile
- FAQ
Basic Info.
Packaging & Delivery
7 days (1601 - 2500 Pieces)
15 days (2501 - 3500 Pieces)
To be negotiated ( > 3500 Pieces)
Product Description
Fiberglass manhole covers, enriched primarily with unsaturated resin, are enhanced through composite modification with various materials. Once molded, they not only exude high strength and an aesthetically pleasing facade but also offer superior electrical insulation, waterproofing, and aging resistance. Boasting resistance to acids, alkalis, impacts, wear and tear, and weather elements like sun and rain, these covers also possess anti-static and anti-theft characteristics, making them a perfect modern replacement for traditional metal alternatives.

Round manhole cover:
Specifications (inner cover*outer frame) | Load-bearing level |
500*600(mm) | B125/C250 |
600*700 (mm) | B125/C250/D400 |
700*800 (mm) | A15/B125/C250/D400 |
700*900 (mm) | C250/D400 |
750*850 (mm) | C250 |
800*900 (mm) | B125/C250/D400 |
Square manhole cover:
Specifications (width*length) | Load-bearing level |
400*600(mm) | B125 |
300*500(mm) | B125 |
500*500(mm) | A15/B125/C250 |
600*600(mm) | B125/C250/D400 |
700*700(mm) | B125/C250/D400 |
800*800(mm) | B125/C250/D400 |
1. Road: Our durable FRP manhole covers are strategically installed on roads, ensuring seamless road maintenance and efficient pipeline overhauls.
2. Squares and Parks: Designed to blend with public infrastructure, our aesthetically pleasing FRP manhole covers not only enhance the look but also shield underlying facilities from potential harm.
3. Residential and Real Estate: Prominently featured in landscaped pools and pipe networks, our FRP manhole covers serve dual purposes-safeguarding essential facilities and enriching community aesthetics.
Engineering case:

Machinery and Equipment:





1. Are you a manufacturer?
Yes, we are a manufacturer, welcome to visit our factory!
2. What's FRP?
Fiber Reinforced Polymer (FRP) is a composite material made of a polymer matrix reinforced with fibers. The fibres are usually glass, carbon, aramid, or basalt. Rarely, other fibres such as paper or wood or asbestos have been used. The polymer is usually an epoxy, vinylester or polyester thermosetting plastic, and formaldehyde resins are still in use. FRP are commonly used in the aerospace, automotive, marine, construction industries and ballistic armor.
3.How can you guarantee you product quality?
100% of our products will be tested before delivery. To control quality, we are using high quality material from high quality supplier.