Are you looking for a reliable Fiberglass Pultrusion Manufacturer in China for electrical components, structural profiles, construction systems, power infrastructure, or corrosion-resistant FRP products? Do you need a supplier that can provide standard pultruded fiberglass profiles, custom FRP sections, OEM production, tooling, machining, or other value-added services? Or are you trying to find a China fiberglass pultrusion factory that can balance product quality, customization, production capacity, and cost?
If the answer is yes, then China offers a broad manufacturing base for fiberglass pultrusion products. Fiberglass pultruded profiles are widely used in electrical and power applications, construction and infrastructure, wastewater treatment, chemical environments, transportation, agriculture, marine projects, and industrial equipment because they combine low weight, corrosion resistance, electrical insulation, and consistent structural performance. Below, we present five Fiberglass Pultrusion Manufacturers in China and compare their production focus, products, applications, customization capabilities, and advantages to help you find a suitable supplier for your project.
List of Fiberglass Pultrusion Companies in China
| Manufacturer | Fiberglass Pultrusion Focus | Main Products | Key Applications |
|---|---|---|---|
| SUSDURA | Large-scale pultrusion within an integrated FRP manufacturing platform | Structural profiles, electrical insulation components, custom FRP profiles | Electrical, infrastructure, automotive, rail, energy, telecommunications |
| Pulwell Composites | FRP pultrusions and advanced composite profiles | GFRP rods, cross-arms, strengthening strips, structural profiles | Electrical, construction, agriculture, utilities, industrial |
| Unicomposite | Standard and custom fiberglass pultruded profiles | Fiberglass rods, tubes, channels, I-beams | Electrical, construction, wastewater, cooling towers, marine |
| Dongguan Sanchuang Composite Materials Technology Co., Ltd. | FRP pultrusion profiles and customized fiberglass components | Pultruded tubes, structural C profiles, fiberglass tool handles, fiberglass poles | Construction, electrical, agriculture, marine, industrial |
| Jiangsu Shirui Composites Co., Ltd. | FRP pultruded profiles and structural systems | Pultruded profiles, FRP rail systems, structural profiles, pultruded grating | Infrastructure, wind power, construction, chemical, industrial |
1. SUSDURA
Established: 1990
Headquarters: Ningbo, Zhejiang, China
Main Products: FRP pultruded structural profiles, electrical insulation components, power and telecommunications enclosures, and custom FRP/OEM composite parts.
Company Overview: SUSDURA is an integrated Chinese composite manufacturer covering material formulation, product design, tooling, FRP pultrusion, compression molding, testing, quality control, and finished-product development. Its pultrusion operation is positioned as a large-scale manufacturing capability within a broader composite platform rather than as a standalone profile business. The company works with fiberglass, carbon fiber, and hybrid reinforcement systems and supports thermoset resin systems including polyester, vinyl ester, phenolic, polyurethane, and epoxy. For buyers sourcing from China, this integrated structure can be useful when a project involves more than a standard profile, such as electrical insulation parts, custom structural sections, inserts, secondary processing, or finished composite assemblies. SUSDURA's publicly stated manufacturing platform serves electrical and electronics, infrastructure, automotive, rail, energy, telecommunications, and industrial applications.
Fiberglass Pultrusion Capabilities: SUSDURA supports continuous FRP profile production together with product design, material selection, tooling, process development, testing, and quality control. Its engineering approach is particularly relevant to buyers who need a custom constant-cross-section profile rather than an off-the-shelf fiberglass section. Customers can provide drawings, dimensions, performance requirements, operating conditions, or existing material specifications for engineering evaluation.
Suitable Customers: Electrical equipment manufacturers, infrastructure companies, automotive and rail suppliers, telecommunications companies, energy-related OEMs, industrial equipment manufacturers, engineering companies, and overseas buyers looking for an integrated China composite manufacturing partner.
Pulwell Composites Co., Ltd.
Established: More than 25 years of experience in the pultrusion industry
Headquarters: Zhongshan, Guangdong, China
Main Products: GFRP composite rods and bars, insulator rods and cross-arms, fiberglass fence posts, and pultruded structural profiles.
Company Overview: Pulwell is an experienced Chinese pultrusion manufacturer focused strongly on FRP pultrusions and advanced composite products. Its business covers the design, manufacturing, and supply of fiberglass and carbon-fiber composite products, with particular experience in unidirectionally reinforced pultrusions, complex custom shapes, and roll-wrapped tubes. The company uses fiberglass, carbon fiber, or hybrid reinforcement with polyester, vinyl ester, and epoxy resin systems, allowing products to be developed for different mechanical, electrical, and environmental requirements. Its product applications extend across electrical infrastructure, construction, agriculture, utilities, industrial equipment, and other applications where lightweight and corrosion-resistant composite components are required.
Fiberglass Pultrusion Capabilities: Pulwell provides product design, tooling, fabrication, and continuous pultrusion production. Its experience with rods, bars, strips, structural profiles, and complex shapes makes it suitable for customers that need more than standard fiberglass tubes or simple sections. The company also provides custom fabrication and can combine different reinforcement and resin systems according to the required performance.
Suitable Customers: Electrical equipment manufacturers, utility companies, construction suppliers, agricultural equipment businesses, industrial OEMs, composite distributors, engineering companies, and international buyers sourcing customized fiberglass pultrusions from China.
Unicomposite
Established: 1998
Headquarters: Nanjing, Jiangsu, China
Main Products: Fiberglass pultruded rods and tubes, fiberglass channels, and fiberglass I-beams.
Company Overview: Unicomposite is a China-based FRP supplier with a long-standing focus on fiberglass products and pultrusion. Its factory produces standard fiberglass pultruded profiles as well as customized composite parts, while its broader manufacturing capability includes pulwinding, SMC/BMC, and hand lay-up for applications that require different forming processes. Its fiberglass pultrusion range covers rods, round tubes, square and rectangular tubes, channels, angles, T profiles, U profiles, flat bars, I-beams, and other sections. The company serves electrical, landscaping, wastewater treatment, cooling tower, agriculture, aquaculture, marine, construction, and industrial applications.
Fiberglass Pultrusion Capabilities: Unicomposite maintains more than 200 sets of molds for standard pultruded profiles and also supports custom product design and manufacturing. Polyester, vinyl ester, and epoxy resin systems are available for different indoor and outdoor requirements, while profile dimensions and lengths can be adapted to customer specifications. The company also provides secondary processing such as CNC drilling and other fabrication services, which can help customers avoid carrying out difficult composite machining after delivery.
Suitable Customers: Construction companies, electrical contractors, wastewater projects, cooling tower manufacturers, agricultural businesses, marine suppliers, OEM manufacturers, distributors, and overseas buyers seeking standard or customized fiberglass pultruded profiles.
Dongguan Sanchuang Composite Materials Technology Co., Ltd.
Established: Nearly 20 years of composite manufacturing experience
Headquarters: Dongguan, Guangdong, China
Main Products: Pultruded fiberglass tubes, FRP structural C-shaped profiles, fiberglass tool handles, and fiberglass support poles.
Company Overview: Dongguan Sanchuang Composite Materials Technology Co., Ltd. is a Chinese composite manufacturer located in Dongguan with a production base covering FRP pultrusion and other composite processes. The company specifically identifies FRP pultruded profiles and carbon-fiber coil products among its main manufacturing activities. Its product range demonstrates a strong focus on fiberglass tubes and shaped profiles, including construction channels, square and rectangular tubes, support profiles, fiberglass handles, fencing products, and specialized fiberglass poles. The company serves construction, electrical insulation, agriculture, marine, sports, landscaping, and industrial applications where lightweight, corrosion-resistant, electrically insulating composite sections are required.
Fiberglass Pultrusion Capabilities: Sanchuang provides FRP pultrusion production together with customized dimensions, cutting, drilling, bonding, chamfering, and other secondary processing. Its published product information also indicates OEM availability and sample orders, giving buyers a practical route to test a customized fiberglass profile before moving into larger production volumes.
Suitable Customers: Construction companies, electrical insulation manufacturers, agricultural suppliers, tool manufacturers, marine businesses, fencing suppliers, industrial OEMs, and buyers requiring custom fiberglass tubes or shaped FRP profiles.
Jiangsu Shirui Composites Co., Ltd.
Established: 1995
Headquarters: Nantong, Jiangsu, China
Main Products: FRP pultruded structural profiles, FRP rail systems, pultruded FRP grating, and customized FRP structural components.
Company Overview: Jiangsu Shirui Composites is a Chinese manufacturer specializing in FRP gratings and pultruded profiles. The company has nearly 50,000 square meters of facilities, nearly 200 employees, more than 120 standard grating molds, and 20 automatic pultrusion lines, with a publicly stated annual production capacity of 1.5 million meters of pultruded profiles. Its production and engineering capabilities cover design, development, pultrusion, fabrication, and complete FRP solutions. The company is particularly relevant to infrastructure, wind power, construction, industrial, chemical, and other projects where corrosion resistance, electrical insulation, low maintenance, and structural durability are important.
Fiberglass Pultrusion Capabilities: Shirui provides continuous pultruded profile manufacturing and further fabrication for FRP structural systems. Its pultruded profiles are also used as the main structural material in its FRP railing systems, while the company's production platform allows customers to source profiles and related FRP components from the same manufacturer.
Suitable Customers: Infrastructure contractors, wind power companies, construction companies, chemical plants, industrial facilities, engineering firms, FRP distributors, and customers requiring higher-volume pultruded profile production.
Frequently Asked Questions
1. How much does a custom fiberglass pultrusion die cost in China?
The cost depends heavily on the profile size, cross-section complexity, hollow or solid structure, number of cavities, steel grade, and surface treatment. As a 2026 reference, published China-sourcing data puts a new pultrusion die at roughly US$5,000–8,000 for a small single-cavity die and around US$15,000–40,000 for larger or multi-cavity tooling. These are budgeting references rather than fixed Chinese market prices. For a quotation, send the manufacturer your cross-section drawing, dimensions, tolerances, resin system, fiber type, and expected production volume. Also confirm whether the tooling cost is included in the first production run and who owns the die after payment.
2. What is the typical MOQ for custom fiberglass pultruded profiles in China?
There is no universal MOQ because manufacturers use different pricing and tooling models. One 2026 China sourcing reference gives approximately 500 linear meters for a first custom run and about 200 meters for repeat orders when the existing die can be reused. However, individual Chinese suppliers publish very different requirements; some standard profiles may be available in much smaller quantities, while certain custom products require 1,000 meters or more. If your first order is only 100–300 meters, ask whether the supplier can use an existing die, combine the tooling cost into the first order, or arrange a trial production.
3. How long does it take to make a custom fiberglass pultruded profile in China?
For a completely new profile, do not calculate lead time from production alone. A 2026 China sourcing reference estimates approximately 4–8 weeks for new tooling, followed by production after the die is ready; repeat orders can be considerably faster because the tooling already exists. Another Chinese FRP supplier publishes approximately 18–22 days for production of a specific structural pultrusion die. Your RFQ should therefore ask for separate dates for drawing review, die manufacturing, trial production, sample approval, and mass production. This gives you a much more realistic project schedule than a single statement such as “30 days lead time.”
4. Can a Chinese fiberglass pultrusion manufacturer make a profile directly from my CAD drawing?
Yes, many manufacturers support custom profiles from customer drawings, but a drawing alone is not enough for a reliable quotation. Provide the 2D or 3D drawing, revision number, critical dimensions, tolerances, wall thickness, cut length, annual volume, resin requirements, reinforcement requirements, surface finish, and application environment. For a hollow profile, also identify the internal dimensions and any areas that must maintain tight tolerances. The manufacturer should review whether the cross-section can be pulled consistently before the tooling is approved.
5. Can a China fiberglass pultrusion factory cut, drill, or machine the profiles before shipment?
Many suppliers can provide secondary processing, but you should confirm this before ordering. Typical services may include cutting, drilling, routing, grinding, bonding, assembly, and other fabrication. This can be especially useful when your finished product requires hundreds of identical holes or precisely cut sections. When requesting a quotation, send the machining drawing together with the pultrusion profile drawing and specify hole diameter, hole position, cut length, allowable tolerance, and quantity. Having the same supplier handle pultrusion and secondary processing can also reduce the risk of dimensional differences between two suppliers.
Conclusion
Need a customized fiberglass pultruded profile from China but unsure which manufacturing route, resin system, profile design, or production partner fits your project? If your project requires more than a standard profile and you need help evaluating material selection, tooling, pultrusion, secondary processing, or an OEM composite solution in China, you can explore SUSDURA's manufacturing capabilities and discuss your requirements directly with its engineering team.
Contact SUSDURA today with your drawing, application requirements, target performance, or existing specification and start evaluating a practical fiberglass pultrusion solution for your project.
