Close-up of razor blades on galvanised wire

Concertina coil · Razor blade tape

Security wire,
made to your size.

Manufacturers of Concertina coils and RBT wire in GI and MS, made with Tata GP sheet. Factory near Kolkata, supplying across India.

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Made to orderYour diameter, rounds and weight per piece

BTO-22 & BTO-15Two blade types, in GI and MS

Tata GP sheetQuality steel from a trusted name

All-India supplyGST registered · GSTIN 19ADLPD7573P1ZP

Our products

Two products.
Any size you need.

Concertina coil

Razor blade tape clipped into a spring-like coil that opens out along a wall, fence or open ground. Quick to lay, hard to cross.

GI or MS, BTO-22 or BTO-15 blade
Diameter and rounds to your order
Clips cut from 1.5 mm Tata GP sheet
Wrapped and tagged for dispatch

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A coil of razor blade tape tied with a steel strap

RBT wire

Razor blade tape: steel blades crimped onto a 2.5 mm core wire. Run it straight along the top of a wall or fence, or use it in your own coils.

GI or MS, BTO-22 or BTO-15 blade
2.5 mm core wire
Coil size and weight to your order
Strapped and wrapped for dispatch

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Strength, durability and precision in every coil we make.

Blade types

BTO-22 and BTO-15

Detail	BTO-22	BTO-15
Core wire	2.5 mm	2.5 mm
Material	GI or MS	GI or MS
Clips	1.5 mm Tata GP sheet	1.5 mm Tata GP sheet
Coil diameter	To your order	To your order
Available as	RBT and Concertina	RBT and Concertina

Need exact blade dimensions or a drawing for a tender? Ask us.

Lengths of razor blade tape showing the blade shape

Where it's used

Wherever a boundary matters

Government sites

Offices, depots, camps and protected areas

Factories and warehouses

Boundary walls, yards and loading areas

Solar and power plants

Long open perimeters

Builders and projects

Sites, plots and gated colonies

Farms and orchards

Keep out trespassers and animals

Homes and walls

On top of boundary walls and gates

Wholesalers and dealers

Regular supply in your customers' sizes

Fencing contractors

Made to the job's size and length

About us

From steel to your site

Dhanuka Wiretech makes Concertina and RBT wire at its own factory at Panchla, Howrah, near Kolkata. We aim to be the most trusted maker of security fencing in India, using only the best raw material, including Tata GP sheet.

Tata GP sheet coil in the factory — 1. Tata GP sheet

Coils of galvanised wire — 2. 2.5 mm GI or MS core wire

A steel clip joining the rounds of a Concertina coil — 3. Crimped and clipped by our own team

Wrapped coils stacked for dispatch — 4. Wrapped, tagged and sent across India

Integrity

We act honestly and ethically.

Excellence

We strive for high performance.

Accountability

We take responsibility for our products.

Collaboration

We succeed together.

Questions

Good to know

What is the difference between RBT and Concertina?

RBT is the blade tape itself, laid straight or in loops. Concertina is RBT clipped into a coil that opens out like a spring, giving a wider and deeper barrier.

What do you need from me for a quote?

The product (RBT or Concertina), GI or MS, blade type (BTO-22 or BTO-15), diameter, rounds or length, how many pieces, and your delivery city.

Can you make a size you don't list?

Yes. Every order is made to the customer's size.

Do you deliver outside West Bengal?

Yes, we supply across India. Tell us your city and we will give you a delivery plan.

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Tell us what you need

Fill in the form, or call or WhatsApp us directly.

Call+91 89618 63966 WhatsApp+91 89618 63966 Email[email protected]

Office

Dhanuka Wiretech
7A, Bentinck Street
Kolkata 700 001, West Bengal

GSTIN 19ADLPD7573P1ZP

Factory

Om Industrial Complex, Jhujharsa Road
Opposite Golabari Pole Factory
Dhulagarh Bazar, Panchla, Howrah

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Security wire,made to your size.

Two products.Any size you need.