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SKYPE: wayne
About Us

Tianjin Cn-Gabion Co., Ltd. is a leading gabion manufacturer, operated in accordance of ISO 9001 system, consitantly deliver high quality products to our customers through strict process control. Our products meet EN | ASTM standards, repeatedly recognized by our clients.

Cn-Gabions are baskets manufactured from double twisted hexagonal woven steel wire mesh 8x10 type, made of Gal Fan (Zn - Al 5% alloy) and PVC coated steel wire produced in compliance with CPR - Construction Product Regulation 305/2011, having EC marking in compliance with ETA- 15/0219. The management and production system is certified in compliance with ISO 9001.

Cn-Gabions are used for the following purposes: retaining structures, river works, erosion control, noise barriers, architectural works.

Cn-Gabions are filled with stones at the project site to form flexible, permeable, monolithic structures such as retaining walls, channel linings and weirs for erosion control projects.

In order to reinforce the structure, all mesh panel edges are selvedged with a wire having a greater diameter.

Steel wire mesh

The nominal tensile strength of the wire mesh is as per EN 10223-3:2013.

The punch strength of the wire mesh is as per UNI 11437 and ISO 17746.

When the mesh is tested at 50% of the nominal tensile strength in accordance with EN 10223-3:2013, the wires will not show cracks in the organic coating within the double twist region.


The steel wire used in the manufacture of the unit is galvanized with Gal Fan, a Zn- 5%Al alloy.

A GalFan+PVCcoating with a nominal thickness of 0.50 mm is then applied to provide added protection for use in hydraulic works, polluted environments or wherever the risk of corrosion is present.

All tests on wire must be performed prior to manufacturing the mesh.

1. Tensile strength: the wire used to manufacture gabions has a tensile strength between 350-550 N/mm2 as per EN 10223- 3:2013. Wire tolerances are in accordance with EN 10218 (Class T1).

2. Elongation: Elongation at fracture not less than 8%, as per EN 10223-3: 2013.
3. Gal Fan coating: minimum quantities of GalFan meet the requirements of 
EN 10244-2 (Table 5 - Class A).

4. Adhesion of Gal Fan: the adhesion of the Gal Fan coating to the wire is according to EN 10244.

5. Outwearing accelerated aging test: when subjected to test in sulphur dioxide environment (EN ISO 6988) after 28 cycles of discontinuous test the mesh does not show more than 5% of DBR (Dark Brown Rust).

PVC coating

The technical characteristics and the ageing resistance of the PVC coating comply with EN 10245-1.

Resistance to UV radiation: the tensile strength and elongation at break of the base compound after 2500 hours of exposure to QUV-A (ISO 4892-3 mode 1) do not change more than 25% from the initial test results.

Chemical resistance: the PVC resist the chemical agents in concentrations that are representative of soil and water normally found in civil works.

Outwearing accelerated ageing test in salt spray: when the PVC coated wire mesh is subjected to the neutral salt spray test (ISO 9227) after 6000 hours of exposure the mesh does not show more than 5% of DBR (Dark Brown Rust).

Resistance to abrasion: the PVC coating does not expose metal wire when tested in accordance with procedure described in par. of EN 60229:2008, after 100,000 cycles with a vertical force of the steel angle of 20N.

Lacing Operations

Lacing operations can be made by using the tools. Gal Fan coated steel rings having the following specification can be used instead of lacing wire:

• diameter: 3.00 mm
• tensile strength: >1720 MPa
• Pull–apart strength > 2.0 kN

Spacing of the rings must not exceed 200 mm.