We Have Built a Modern Production Base Integrating Production, Processing and Testing.

Quality First, International Standards

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Focusing on The Full Industrial Chain Layout of R&d, Production, Sales and Export of Corrugated Guardrails.

Deeply rooted in the field of corrugated steel guardrails

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HOT PRODUCTS

Our company has always been deeply engaged in the field of steel corrugated guardrails, Focusing on the full industrial chain layout of R&D, production, sales and export of corrugated guardrails.

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Highway Guardrail

Roller Barrier

Bridge Guardrail

Steel Formwork For Building Construction

Guardrail Accessories

W Beam Guardrail

The core component, with a typical "W" shape cross-section, which enhances the structural strength and impact resistance. Common specifications: Thickness 2.5mm-4.0mm, width 310mm/432mm, length 4320mm (standard) or customized according to project needs. The wavy design allows the panel to deform and absorb impact energy during collision, avoiding rigid damage to vehicles.

Thrie Beam Guardrail

Thrie Beam Guardrail (also called Triple Beam Guardrail) is a high-strength semi-rigid safety barrier widely used on highways, expressways, and high-risk road sections.

Roller Barrier

Made of Q235/Q355 high-strength steel, including round posts and square posts, which are firmly fixed on the road foundation. The posts are connected with the support brackets through bolts, forming a stable overall structure, which can resist the lateral impact force of vehicles and avoid the guardrail from being pushed or overturned.

Steel Formwork For Building Construction

Steel formwork for building construction is a steel mold used for casting concrete. It is used in the structural construction of walls, columns, beams, slabs, stairs, etc., in buildings such as residences, high-rises, villas, and factories. It is a mainstream industrialized building material that replaces wooden formwork, and its core value lies in its high forming precision, high turnover rate, and low overall cost.

Bridge Guardrail

Bridge railings are safety protection structures installed on both sides of a bridge, in the central divider, or at the boundary between pedestrians and vehicles. Their core functions are to prevent out-of-control vehicles from running off the bridge, to prevent people from falling, and to isolate oncoming traffic. They also serve to beautify the landscape and guide the line of sight.

U Spacer

It connects the guardrail beam panel and the post firmly, ensuring that the beam panel is stably fixed on the post without loosening or shifting, even under vehicle impact. It accurately controls the distance between the beam panel and the post, ensuring the standard installation of the guardrail.

Irregular-shaped Spacer

Guardrail posts are the vertical structural supports that form the core foundation of highway safety barriers. As the critical link between the guardrail beam and the ground, they determine the system’s ability to withstand impacts, control deflection, and redirect vehicles safely during collisions.

U Post

Since 2015

Guanxian Dahai Composite Materials

Shandong Guanxian Dahai Composite Materials Co., Ltd. founded in 2015, our company has always been deeply engaged in the field of steel corrugated guardrails, focusing on the full industrial chain layout of R&D, production, sales and export of corrugated guardrails. With professionalism and perseverance, we have become a benchmark enterprise in the highway traffic protection field, serving customers around the world.

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10 year

Production Experience

520 +

Active Employees

300000 ㎡

Floor Area

50 +

Exporting Countries

APPLICATION CASES

From the inspection of incoming raw materials, the patrol inspection during production to the final inspection of finished products leaving the factory, we ensure that 100% of the products leaving the factory are qualified. Customer satisfaction is our ultimate goal.

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OVERSEAS SHIPPING

Packaging And Shipping

NEWS CENTER

Roller Barrier: Innovative Energy-Rotating Road Safety Barrier System

With the continuous upgrading of modern highway safety standards, traditional rigid and semi-rigid guardrail systems face limitations in high-speed accident protection, especially for vehicle rollover and high-energy collision scenarios.

Highway Guardrail: The Core Barrier of Road Passive Safety Protection

Highway traffic safety relies on a complete set of passive safety infrastructure to mitigate accident risks and reduce casualty rates. As the most fundamental and widely deployed protective facility, the highway guardrail serves as the main safety barrier along modern expressways and arterial roads.

03-20

2026

Guardrail Spacer: Essential Isolation and Buffering Fittings for Road Barrier Systems

Road guardrail systems are composed of integrated combinations of main beams, guardrail posts, end terminals, crash cushions and supporting accessories. Among these components, the guardrail spacer is a tiny yet functionally decisive auxiliary part installed between guardrail posts and beam panels.

01-17

2026

Guardrail Spacer: Critical Buffer and Isolation Components of Guardrail Systems

A complete road passive safety system is assembled from multiple standardized components, including guardrail posts, beams, end terminals, crash cushions and various auxiliary accessories. Among these structural parts, the guardrail spacer is a small but functionally vital connecting component installed between guardrail posts and W-beam or thrie-beam guardrail plates.

12-20

2025

Guardrail Post: Vertical Foundation of Road Barrier Safety Systems

Modern road passive safety systems consist of multiple coordinated components, including crash cushions for energy dissipation, end terminals for hazard elimination, and full sets of guardrail accessories for structural integration.

11-12

2025

Guardrail Post: Vertical Structural Backbone of Road Passive Safety Systems

Road passive safety infrastructure relies on a coordinated combination of protective components to mitigate crash risks and reduce traffic casualties. While crash cushions absorb impact energy and end terminals eliminate sharp terminal hazards, the guardrail post acts as the primary vertical load-bearing component that anchors the entire guardrail system to the road foundation.

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