How do you ensure product quality?

We implement a rigorous 100% inspection system for finished products, including visual and function inspections. We also support third-party inspections and maintain full traceability of raw materials.

Can you provide OEM or ODM services?

Yes, we offer complete OEM/ODM system support. We customize products strictly according to customer requirements and standards, providing tailored solutions based on extensive international trade experience.

Galvanized Guardrail Pillar, Barrier Stand, Highway Guardrail Sigma Shape Posts

Name: Galvanized Guardrail Pillar, Barrier Stand, Highway Guardrail Sigma Shape Posts
Brand: Shandong Guanxian Dahai Composite Material Co., Ltd.
SKU: 2294106865

Shandong, ChinaShandong Guanxian Dahai Composite Material Co., Ltd.

US$9.00-16.00

100 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Maintenance

Warranty

3 Years

Model NO.

Guardrail Sigma Post

Certification

ASTM, ISO9001, CE

Surface Treatment

Galvanized

Position

Road Side

Material

Steel

Guardrail Standard

Aashto M180, En1317, Ral RG620, as Nzs 3845-1999

Guardrail Beam Style

H, C, U, Round, Square, Sigma

Zinc Coating Thickness

100/350/550/610/1100/1200G/M2; 50/77/85/140/155um

Length

3200/3810/4000/4130/4300/4320mm

Width

306/310/312/380mm

Height

80/82/83/85mm

Thickness

2.5/2.75/2.85/3.0/3.1/3.15/3.5/3.75/3.85/4.0/4.15

Surface-Treatment

Hot Dipped Galvanized or Plastic Sprayed Coating

Color

Zinc Layer 550G/M2, 1100G/M2, 600G/M2 Beams

Tensile Strength

Minimum 495MPa

Guardrail Material Steel Grade

A572/Q345b/Ha350/Q235B/A36/S355jr/S275jra572/Q355

R&D Capacity

Own Brand

Business Type

Soure Manufacturer / Factory, OEM

Transport Package

25 PCS Per Bundle

Specification

4320*310*85mm or as customer request

Trademark

Guanzhoudahai

Origin

China

HS Code

7308900000

Production Capacity

200000prices/Year

Key features

Customizable Dimensions: Length, width, height, and thickness can be customized to meet specific project requirements.

Multiple Surface Treatments: Options include hot-dip galvanized, plastic sprayed coating, and various colors like green, yellow, blue, and gray.

High Corrosion Resistance: Zinc coating thickness ranges from 100 to 1200 g/m2, ensuring long-lasting durability and protection.

International Standard Compliance: Products meet ASTM, ISO9001, CE, EN 1317, AASHTO M180, and other global safety standards.

Direct Factory Supply: Source directly from the manufacturer to ensure lower costs, dependable supply, and efficient logistics.

100% Quality Inspection: Every batch undergoes strict end-to-end quality control with a 100% pass rate before shipment.

3-Year Warranty Coverage: Comprehensive warranty covers mechanical defects, backed by professional after-sales technical support.

Flexible Customization: Supports OEM/ODM services, including customization from samples, designs, and full customization options.

Company profile

100% Finished Products InspectionCustomization from SamplesNational Award receivedProduct Certification

Shandong Guanxian Dahai Composite Material Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao portAverage Response Time: ≤0.16h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier operates in metal products, steel processing, traffic and public-administration signage, traffic-safety equipment, metal structures, and high-performance fibers and composites. It holds ISO9001:2015 and CE certifications, reports documented procedures for service assessment, corrective actions, and complaint handling, and has six to ten quality-control staff. The supplier demonstrates customization capability and reports new products within the past year, but does not provide ODM services, SDKs, overseas warehouses, showrooms, agents, or branches. Financial information is limited to year labels without substantive performance figures, so financial credibility cannot be determined. No Fortune 500 cooperation or well-known-brand OEM experience is reported. Production scale, capacity, and customer references are not sufficiently evidenced.

Supplier typeThe supplier is a manufacturer and seller covering metal structures, metal materials and products, steel rolling, traffic and public-administration signs, traffic-safety equipment, mechanical and electrical equipment, and high-performance fibers and composite materials. The stated scope also includes goods import and export, indicating both manufacturing and trading activities.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certifications relevant to quality management and product conformity, although the supplied information does not specify their scope or validity dates.

After-Sales capabilityThe supplier has written and followed procedures for service-capability assessment, corrective and preventive actions, and customer complaint handling. However, it has no overseas warehouse, showroom, agent, or branch, and reports zero countries with overseas services, which limits documented overseas service coverage.

R&D capabilityThe supplier reports two years of total R&D engineer experience, one national science and technology progress award, and new products within the past year. It does not provide an SDK and does not offer ODM services, so the evidence supports some innovation activity but not broad software or ODM capability.

Production capacityThe supplier lists multiple manufacturing activities, including metal products, steel rolling, signage, traffic-safety equipment, metal structures, and composite materials, and reports six to ten quality-control staff. Lead times are stated as within 15 working days in both peak and off-season, but production capacity, equipment, output, and facility scale are not provided.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. This directly supports a broad product-customization capability, although ODM service is specifically unavailable.

Product Q&A

Q:What customization options are available for the guardrail posts?

We offer flexible customization including dimensions (length, width, height, thickness), surface treatments (hot-dip galvanized, plastic sprayed), and colors. Full customization from samples or designs is supported.

Q:What certifications do your products hold?

Our products are certified with ASTM, ISO9001, and CE. They also comply with international standards such as EN 1317, AASHTO M180, RAL RG620, and AS NZS 3845-1999.

Q:What is the warranty period and after-sales service?

We provide a 3-year warranty. Our after-sales service includes technical guidance, installation assistance, and prompt responses to inquiries to ensure long-term product performance.

Q:What are the payment terms and minimum order quantity?

The minimum order quantity is 1. Payment terms include LC, T/T, D/P, PayPal, Western Union, and small-amount payments. Incoterms include FOB, CIF, CFR, and EXW.

Q:What is the average lead time for production?

The average lead time is within 15 workdays for both peak and off-peak seasons. Over 89% of orders last year were delivered ahead of schedule.