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Providing You With High-Quality Rock Wool Products

Nanjing Hairui Heat Preservation Material Limited Liability Company – established in March 2008, specializing in rock wool insulation, rubber plastic boards, ceramic fiber, and glass wool materials for industrial and construction use.

Who Are We?

Nanjing Hairui Heat Preservation Material Limited Liability Company was established in March 2008. We are a production-oriented enterprise specializing in the manufacturing of rock wool boards, rubber plastic boards, glass wool, and ceramic fiber products.

With over 16 years of experience, our company has built a strong reputation for quality and reliability. Our products have passed ISO9001-2000 quality system certification, and our rock wool products are certified by the China Classification Society (CCS).

Quality First Global Service Certified Products

Our Values

  • • People-Oriented: We value our team and customers equally.
  • • Innovation: Constantly improving our materials and processes.
  • • Social Responsibility: Giving back to the community that supports us.
  • • Excellence: "Pursuit of quality, go beyond the ordinary."

16

Years of Experience

100+

Production Workers

1000+

Global Customers

30,000+

Tons Annual Output

Our Product Range

We offer a wide range of high-performance insulation materials designed for industrial, commercial, and agricultural applications.

Rubber Plastic Board

Flexible, durable insulation with excellent thermal and acoustic performance. Ideal for HVAC systems, refrigeration, and building insulation.

  • • Low thermal conductivity
  • • Moisture resistant
  • • Easy to install
  • • Fire retardant

Rock Wool Board

Rigid insulation panels made from molten rock, offering superior fire resistance and thermal insulation for walls, roofs, and industrial equipment.

  • • Non-combustible (A1 fire rating)
  • • High temperature resistance
  • • Sound absorption
  • • Long service life

Rock Wool Roll Felt

Flexible rock wool insulation in roll form, perfect for wrapping pipes, ducts, and irregular surfaces in industrial and commercial settings.

  • • High flexibility
  • • Excellent thermal retention
  • • Vibration damping
  • • Corrosion protection

Agricultural Rock Wool

Hydroponic growing medium made from rock wool, providing excellent water retention and aeration for greenhouse farming and vertical agriculture.

  • • Sterile and inert
  • • Reusable
  • • pH stable
  • • Supports root development

Ceramic Fiber Product

High-temperature insulation material used in furnaces, kilns, and industrial heating systems. Withstands extreme heat up to 1400°C.

  • • Ultra-high temperature resistance
  • • Low heat storage
  • • Lightweight
  • • Excellent thermal shock resistance

Glass Wool Board

Fiberglass-based insulation board with excellent sound absorption and thermal insulation properties. Commonly used in walls, ceilings, and HVAC.

  • • High sound absorption
  • • Non-flammable
  • • Lightweight
  • • Resistant to mold and pests

Elastomeric Foam Insulation

Closed-cell rubber insulation ideal for refrigeration, chilled water systems, and condensation control in humid environments.

  • • Superior moisture resistance
  • • Flexible and easy to cut
  • • Low maintenance
  • • Energy efficient

Mineral (Rock) Cotton

High-density insulation material used in industrial piping, boilers, and structural fire protection. Offers excellent thermal and acoustic performance.

  • • Fire-resistant up to 1000°C
  • • High mechanical strength
  • • Long-term stability
  • • Environmentally safe

Industry Applications

Our insulation materials are trusted across multiple industries for safety, efficiency, and durability.

Power Industry

Insulation for turbines, boilers, and high-temperature pipelines ensures safe and efficient energy generation.

Mechanical Equipment

Protects circuits and machinery from overheating and short circuits with reliable thermal insulation.

Construction

Used in walls, roofs, and HVAC systems for energy efficiency, soundproofing, and fire safety.

Metallurgical Industry

High-temperature insulation for furnaces, ladles, and molten metal handling equipment.

Chemical Industry

Corrosion-resistant insulation for reactors, storage tanks, and chemical processing units.

Shipbuilding

Fire-rated and moisture-resistant insulation for engine rooms, cabins, and ventilation systems.

Get in Touch

For product inquiries, technical support, or business collaboration, reach out to us directly.

Phone: +86 18913361158
Tel: +86 025 5210 5315
Email: [email protected]
Address: Hairui Group, NO.17 Jiangnan Road, Nanjing, Jiangsu, China
WhatsApp: Chat on WhatsApp

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