Weihai Guangwei Composites is a source-reviewed supplier profile for carbon fiber tube, pultruded, and carbon fiber plate, with every search topic tied to company-published product or process evidence and separated from buyer-side verification requirements.
Weihai Guangwei Composites Co., Ltd. (Shenzhen Stock Exchange code 300699), part of Guangwei Group, publishes an integrated chain spanning precursor, carbon fiber, fabrics, resin and prepreg through composite components, production equipment, testing and engineering. The current official site identifies operating units including Weihai Tuozhan Fiber, the General New Materials business, Guangwei Energy New Materials, Guangwei Composite Technology and Guangwei Precision Machinery. Its published portfolio covers T300- through T1100-class high-strength fibers, M40J- through M65J-class high-modulus fibers, multi-fiber prepregs, pultruded wind-blade spar caps, plates, tubes and shaped components. China Composites Expo lists the same Chinese and English entity at booth 6V01 for 2026. Identity, products and capabilities are company- or organizer-published and have not been independently site-audited by GetFRP.
The reviewed product and process scope makes this supplier relevant to buyer searches for carbon fiber tube, pultruded, carbon fiber plate, and carbon fiber fabric. These phrases describe products or processes supported by the cited public scope; they do not expand the supplier's catalog or replace technical qualification.
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This procurement profile is built for materials engineers and converters evaluating reinforcement form, sizing compatibility, package quality and downstream process stability. It organizes Weihai Guangwei Composites Co., Ltd.'s published products, processes, certificate references and official sources around the primary topic “Weihai Guangwei Composites T300- through T1100-class high-strength carbon fiber.” The objective is to help a buyer decide whether to open a controlled RFQ, not to turn a broad company catalog into an unsupported approval.
Weihai Guangwei Composites Co., Ltd. currently lists 6 product or service groups and 6 manufacturing or support capabilities in this reviewed record. The public scope indicates what to investigate, while the buyer remains responsible for drawings, design calculations, standards, current certificates, sample approval and order-specific commercial confirmation. Claims below are attributed to the attached source set unless GetFRP explicitly labels them as qualification guidance.
The official carbon-fiber directory publishes shelf grades with tow size, tensile strength, modulus, elongation and linear density, including GQ3522, GQ4522, QZ5526, QZ6026, QM4035, QM4050 and QM3560 families. The prepreg directory covers epoxy, bismaleimide, cyanate-ester and phenolic matrices with carbon, glass, aramid and quartz reinforcement, and gives aerospace, rail, marine, sporting, wind, radome, tooling and 3C examples. Published component scope also includes plates, tubes, structural and sandwich parts, wound shells and wind-blade spar caps. Group-level capability should not be read as proof that one legal entity or site performs every operation. An RFQ should identify the contracting entity and production site; fiber grade and tow; sizing and resin compatibility; fabric architecture or prepreg areal weight and resin content; roll dimensions; storage and transport limits; batch identity; certificate-of-analysis fields; and change notification. Spar caps and other structures also require a controlled drawing, lay-up, fiber volume, resin system, pultrusion or other route, dimensional tolerance, surface criteria, NDT, sampling and mechanical acceptance methods. The company and organizer mention quality, aerospace, automotive, laboratory and classification credentials, but the reviewed pages do not expose a complete current certificate set sufficient to verify entity, address, scope, number and validity. None is recorded as independently verified; request certificates and reports covering the quoted product and manufacturing site. The official site loads in browsers, while command-line validation from the review environment reported a self-signed element in its TLS chain. Independently verify the domain, contact and certificate status before exchanging controlled drawings, credentials or payment instructions.
No company-level certification is listed on this profile.
Evaluate Weihai Guangwei Composites Co., Ltd. as a potential composite reinforcement supplier for carbon fiber tube, verify the public evidence and prepare a comparable RFQ.
Weihai Guangwei Composites Co., Ltd. includes this product in its published supply scope. Treat that listing as a starting point: request the current datasheet or drawing, material and construction, available grades or dimensions, guaranteed properties, production site, quotation revision and evidence that represents the exact item offered.
For M40J- through M65J-class high-modulus carbon fiber and fabrics, buyers should convert the catalog description into an acceptance specification. Confirm standard and custom options, raw-material system, critical tolerances, surface or finish, test basis, sample route, MOQ, lead time and packing. Any alternative proposed by Weihai Guangwei Composites Co., Ltd. should be identified explicitly rather than treated as automatically equivalent.
This product broadens the supplier's public portfolio, but GetFRP does not infer approval from a product name alone. Ask Weihai Guangwei Composites Co., Ltd. for the grade or model designation, manufacturing route, current technical file, production and test location, batch traceability and the limits that apply to published performance values.
A useful RFQ for Pultruded carbon-fiber spar caps for wind-turbine blades should describe the buyer's application without disclosing unnecessary proprietary detail, then state the measurable product requirements. Compare Weihai Guangwei Composites Co., Ltd.'s response against the same dimensions, quantity, inspection, documentation, Incoterm and delivery assumptions used for every shortlisted supplier.
Weihai Guangwei Composites Co., Ltd. publishes Wet-spinning and dry-jet wet-spinning carbon-fiber production as part of its capability scope. Buyers should ask which site and equipment perform the work, the practical size or material limits, the normal control records and whether the proposed order uses the same route. Subcontracted stages should be visible in the quality plan.
The relevance of Carbon-fiber weaving and warp knitting depends on the requested product and acceptance criteria. During qualification, request a process flow, critical control points, inspection or test method, operator or equipment qualification where applicable, nonconformance handling and a recent example that represents the offered production route.
For sourcing purposes, Hot-melt, solvent and staged prepreg production is a capability signal rather than independent verification. Confirm capacity, tooling or fixture availability, setup and changeover assumptions, lot definition, sample approval and traceability. The quotation should identify any limitation that could affect geometry, performance, appearance or delivery.
Buyers evaluating Continuous pultrusion of carbon-fiber spar caps should connect the process claim to evidence: an equipment list, controlled procedure, representative report, production photograph or witnessed sample may each answer a different risk. Weihai Guangwei Composites Co., Ltd. should also explain how the result is checked before release and recorded for the shipment.
These are sourcing contexts suggested by the published product scope, not confirmed project references. Validate the exact application, design basis and evidence in the RFQ.
Weihai Guangwei Composites Co., Ltd.'s reinforcement range can be screened for laminating, pultrusion, winding, molding or conversion programs. Buyers should confirm grade, sizing, architecture, width, tex or areal weight, package, splice and moisture limits, then run a representative processing trial before approving the material for repeat production.
Weihai Guangwei Composites Co., Ltd.'s chemistry portfolio can be evaluated for the named composite process only after the processing window and cured-property basis are aligned. Request current data sheets, grade and site identity, viscosity or mix control, cure and exotherm, storage, batch certificate fields and test evidence based on the intended reinforcement and construction.
Weihai Guangwei Composites Co., Ltd.'s listed machinery can enter a line comparison when the buyer supplies a written product and process requirement. The proposal should define the complete line boundary, controls, utilities, safety, throughput, acceptance test, installation, training, spares, documentation and the responsibility for proving product quality with representative material.
Weihai Guangwei Composites Co., Ltd.'s source record currently includes Official Guangwei Composites Website, Official Guangwei Company Profile, Carbon Fiber and Fabric Directory, High-Performance Prepreg Directory. These links let a buyer distinguish company-published information from GetFRP's own qualification guidance and return to the original context when a claim changes.
No company-level certification is presently listed in the reviewed profile. That does not prove that no document exists, but it means the RFQ should ask for the quality-system certificate and every product-specific test or approval needed by the buyer rather than assuming a certification from market reputation.
GetFRP last recorded a public-source review date of 2026-08-25. Public websites and catalogs can change after review, so commercial decisions should use newly downloaded files and direct supplier confirmation. GetFRP's public or claimed status describes profile ownership and identity controls; it does not certify every product statement or predict order performance.
Official product catalogs, web directories and technical guides published by the supplier.
Official identity, business units, products and current contacts.
Open catalogValue chain, operating units, grade range and applications.
Open catalogPublished carbon-fiber grades, tow sizes and property table.
Open catalogReinforcements, resin systems, grades and application scope.
Open catalogMatching identity, 2026 booth and organizer product categories.
Open catalog
Changzhou Tianma Group Co., Ltd. is based in Xinbei District, Changzhou, Jiangsu. Both the official website and China Composites Expo identify this legal entity, while the website also notes its former identity as Building Materials Factory 253. The site traces the enterprise lineage to a state-planned project begun in 1960 and calls the business the cradle of China's FRP industry; 1960 is therefore presented here as the start of the organizational lineage, not the current legal entity's registration date. The published portfolio spans glass-fiber yarns and products, unsaturated polyester and vinyl ester resins, gelcoats and auxiliaries, SMC/BMC, finished FRP products, and wind-energy and photovoltaic composites. China Composites Expo lists the exhibitor as CHANGZHOU TIANMA GROUP CO., LTD. and publishes booth 7M06 for 2026. History, industry-position, scale, capacity, market and product-performance statements are company- or organizer-published and have not been independently verified by GetFRP.
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