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ProductsDiscover Ruibaolong's full range of High-Performance PC Steel Wire, PC Steel Bar, and Cold Drawn Wire. We specialize in SWRH82B Spiral Ribbed, Plain, and Indented surfaces, as well as Hose Reinforcement Wire. ISO 9001 certified manufacturer for PCCP and infrastructure projects.
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About UsTianjin Ruibaolong Prestressed Steel Strand Co., Ltd. is a leading ISO 9001 certified manufacturer established in 2010. We specialize in producing and exporting high-quality PC wire and steel bars globally.
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BlogAbout Ruibaolong We are a professional metal products manufacturer dedicated to High-Performance PC Steel Wire. With a strong market network covering China and an expanding global footprint, we supply essential materials for bridges, buildings, and infrastructure. Here, we share our journey in connecting the world with strength and durability.
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Contact UsGet in touch with Ruibaolong for factory-direct quotes on PC Wire and Steel Bars. Located in Tianjin, China. Contact our export team today for technical support and pricing.
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Blog
22
2026
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06
Cold Drawn Indented Steel Wire (VR-1) for Reinforcing Mesh & Precast Concrete
In the modern construction and precast concrete industries, structural strength largely depends on the bonding performance between steel reinforcement and concrete.
Cold Drawn Indented Steel Wire, widely known in CIS countries as Wire VR-1 (Проволока ВР-1), is one of the most commonly used reinforcement materials for welded wire mesh, precast concrete elements, AAC blocks, and concrete pavements.
As a professional steel wire manufacturer located in Tangshan, Hebei—China’s leading steel production center—we supply premium-quality low carbon indented steel wire to customers worldwide with competitive factory-direct pricing and flexible logistics solutions.
Product Specifications
| Property | Specification |
|---|---|
| Product Name | Cold Drawn Indented Steel Wire |
| Alternative Name | Wire VR-1 / Проволока ВР-1 |
| Material | Low Carbon Steel Q195 / Q235 |
| Diameter Range | 3.0mm – 5.0mm |
| Common Sizes | 3.0mm, 3.7mm, 4.0mm, 5.0mm |
| Tensile Strength | ≥550 MPa |
| Surface Type | Indented / Ribbed |
| Coil Weight | 500kg – 1000kg |
| Packing | Waterproof Paper + Stretch Film |
| Applications | Reinforcing Mesh, AAC Blocks, Concrete Panels |
| Origin | Tangshan, Hebei, China |
Why Choose Indented Steel Wire Instead of Smooth Wire?
The periodic indentations on the wire surface are specifically designed to improve the mechanical bond between steel and concrete.
Superior Bond Strength
The indented profile creates a strong mechanical interlock with concrete, significantly improving adhesion compared with smooth wire.
Better Crack Resistance
Enhanced bonding helps distribute stress more evenly throughout the concrete structure, reducing the risk of cracking during curing and long-term service.
Material Cost Savings
With tensile strength exceeding 550 MPa, engineers can often reduce the total amount of reinforcement required while maintaining structural performance.
Excellent Weldability
Cold drawn indented wire is highly suitable for automatic welded mesh production lines, ensuring efficient manufacturing and consistent welding quality.
Main Applications
Welded Wire Reinforcing Mesh
Cold drawn indented steel wire is widely used for producing welded reinforcing mesh for residential, commercial, and infrastructure projects.
Precast Concrete Elements
Suitable for:
- Wall panels
- Floor slabs
- Concrete fences
- Drainage products
- Utility structures
AAC Block Reinforcement
Used as reinforcement layers inside autoclaved aerated concrete blocks and panels.
Road and Airport Pavements
Provides internal reinforcement for heavy-duty concrete flooring, highways, industrial yards, and airport runways.
Manufacturing Standards
Our cold drawn indented steel wire can be produced according to customer requirements and commonly referenced international specifications used in reinforcing mesh production.
Typical standards include:
- GOST requirements for CIS markets
- Customer-specific technical requirements
- Reinforcing mesh manufacturing specifications
- Customized indentation patterns and dimensions
Every production batch undergoes strict inspection for:
- Diameter tolerance
- Tensile strength
- Surface quality
- Coil weight consistency
to ensure reliable performance before shipment.
Why Is Cold Drawn Indented Wire Popular in Reinforcing Mesh Production?
Cold drawn indented steel wire combines high tensile strength, excellent weldability, and superior concrete bonding performance.
Compared with conventional smooth wire, it enables manufacturers to produce stronger reinforcing mesh while reducing steel consumption and overall production costs.
For this reason, Wire VR-1 remains one of the most widely used reinforcement materials in construction and precast concrete manufacturing throughout Central Asia, Eastern Europe, and CIS countries.
Export Logistics from China's Steel Hub
Located in Tangshan, Hebei Province, our factory benefits from direct access to China's major steel supply chain and transportation network.
We provide:
- EXW pricing
- FOB Tianjin Port
- CIF shipping solutions
- DAP delivery service
for customers worldwide.
For Central Asian destinations such as Kazakhstan, Kyrgyzstan, Uzbekistan, and Tajikistan, we can arrange truck, rail, or multimodal transportation according to project requirements.
All coils are securely packed with waterproof paper and stretch film to prevent moisture and corrosion during long-distance transportation.
Frequently Asked Questions (FAQ)
What is VR-1 wire?
VR-1 wire (Проволока ВР-1) is a low carbon cold drawn indented steel wire commonly used for welded reinforcing mesh and concrete reinforcement applications.
What diameters are available?
Standard diameters include:
- 3.0 mm
- 3.7 mm
- 4.0 mm
- 5.0 mm
Customized diameters are also available upon request.
Is indented wire better than smooth wire?
Yes.
The indented surface improves the bond between steel and concrete, resulting in better crack resistance and structural stability.
Can this wire be used for welded mesh production?
Absolutely.
Cold drawn indented steel wire is specifically designed for automated welded mesh manufacturing and offers excellent weldability.
Do you export to Central Asia?
Yes.
We regularly supply customers in:
- Kazakhstan
- Kyrgyzstan
- Uzbekistan
- Tajikistan
with flexible rail, truck, and sea freight solutions.
What is the minimum order quantity?
The MOQ depends on wire diameter and destination. Please contact us for a customized quotation.
Contact Us for Factory Direct Pricing
Looking for a reliable Cold Drawn Indented Steel Wire manufacturer in China?
Contact us today for:
Factory-direct pricing
Free quotation
Custom specifications
FOB, CIF, and DAP shipping solutions
We are ready to support your reinforcing mesh and precast concrete projects worldwide.
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Tianjin Ruibaolong Prestressed Steel Strand Co., Ltd. is one of the professional manufacturers specializing in the research, development, production, and operation of prestressed steel wires, cold-drawn steel wires, and steel wires for roll welding machines.
Address: No. 3, Tianyu Road, Tianyu Science and Technology Park, Jinghai District, Tianjin
Email: globaltrade@rblprestress.com
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