The FRP manhole cover is an innovative marvel crafted from top-tier fiberglass and its derivatives like glass fiber cloth and felt, serving as reinforcing pillars. With synthetic resins, such as unsaturated polyester and epoxy, forming the matrix, these covers are expertly produced through advanced molding processes, including compression and hand lay-up techniques. This meticulous crafting ensures unparalleled durability and functionality.
Our fiberglass manhole covers revolutionize urban infrastructure with their composite nature, primarily utilizing unsaturated resin. These covers boast a harmonious blend of materials, resulting in a high-strength, visually appealing product with excellent electrical insulation. Their robust design offers superior waterproofing, aging resistance, and resilience against harsh chemicals like acids and alkalis. The covers excel in anti-corrosion, impact resistance, wear durability, and protection against environmental factors. Additionally, they provide anti-static properties and theft deterrence, making them a superior alternative to traditional metal covers.

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: Specifically designed FRP manhole covers are integral to road infrastructure, facilitating seamless maintenance and pipeline repairs.
2. Squares and Parks: Elegantly crafted FRP manhole covers enhance public facilities' aesthetics and functionality, ensuring protection for underlying infrastructure.
3. Residential and Real Estate: A staple in landscape pools and pipe networks, these FRP covers not only safeguard infrastructure but also contribute to community beautification.
Engineering Case:
Machinery and Equipment:

Established in August 2013, Hebei Richange FRP Products Co., Ltd. thrives at the heart of the vibrant Weisan Road, within the esteemed High-tech Development Zone of Jizhou District, Hengshui City. A beacon of innovation, the company integrates cutting-edge research, design, and precision manufacturing with strategic sales initiatives, meticulous installation services, and exceptional after-sales care. With a robust synergy between advanced technology and expert craftsmanship, Hebei Richange has pioneered numerous visionary projects nationwide. Celebrated as a trailblazer in the environmental protection equipment industry, the company's diverse product offerings include meticulously engineered BWFRP cable protection pipes crafted through sophisticated braided, winding, and pultrusion processes; state-of-the-art integrated pump stations; resilient FRP cable brackets; a multifaceted range of FRP molded products; and premier PVC solutions.-Materials: FRP, PPMaterials: FRP, PVDFOur company proudly stands at the forefront of production, sales, and maintenance for a range of containers, including FRP, carbon steel, stainless steel, and composite FRP. We showcase a formidable infrastructure with 10 state-of-the-art pipe production lines utilizing advanced braided, wound, and pultrusion techniques. Additionally, our capabilities are bolstered by 12 cutting-edge tank spray lining production lines, 2 innovative tank winding lines, a dedicated integrated pump station production line, 2 large-scale molding machines, 3 compact molding machines, and 3 sophisticated sheet production lines. This infrastructure supports unparalleled quality and operational efficiency, underscoring our extensive and diverse product portfolio.
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.