Beijing Gaoyuan Zhihong Environmental Protection Technology Co., Ltd., established in 2007 and headquartered in Daxing District, Beijing, is a national high-tech enterprise and a specialized, refined, unique, and innovative SME in Beijing, holding a Class A qualification for noise pollution control. With nearly 20 years of professional experience in noise control, the company adheres to the development philosophy of "professional acoustic control, refined intelligent manufacturing, patented originality, and innovative solutions."

The company has independently developed a patented product—particle-damped sound-absorbing sandwich panels. It has three intelligent production lines and an 8,000-square-meter production base in Shijiazhuang, focusing on the production of environmentally friendly sound-absorbing sandwich panels. All products possess excellent sound absorption, sound insulation, and heat insulation performance, and environmental quality is strictly controlled throughout the entire production process.

We provide one-stop noise control solutions covering acoustic design, customized manufacturing, construction, and acceptance. Our products and services cover a wide range of applications, including industrial and mining workshops, HVAC and cooling tower noise reduction, soundproof rooms and soundproof enclosures, road noise barriers, as well as conference rooms, recording studios, and cinemas. We specialize in factory noise and fan vibration control, earning the trust of tens of thousands of customers.

Leveraging our expertise and innovation, we are committed to building a quieter industrial future through professional, efficient, and environmentally friendly noise control solutions.

Beijing Specialized, Refined, Unique and Innovative SME

Business License

Class-A Qualification for Noise Pollution Prevention and Control

Perforated sound-absorbing panel

Particle damping sound-absorbing panel

Metal rock wool sound insulation sandwich panel

Sandwich roof panel

 HVAC Acoustic Enclosure

Fan Silencer

Advantages and acoustic principles of perforated color steel rock wool sound-absorbing panels

lightweight and high-strength, reducing building load; convenient installation and short construction period; durable and easy to maintain, with excellent thermal insulation performance

Sound waves enter the rock wool layer through the perforated surface, and the sound energy is dissipated by fiber friction;unabsorbed sound waves are blocked by the steel plate, and the rock wool layer blocks structural sound transmission, significantly

improving the sound insulation effect.

Double-sided color steel panel (outer layer): Mostly made of aluminum-zinc coated or galvanized baking finish steel. It features excellent corrosion resistance and weather resistance. With high-density properties, it reflects and blocks sound waves, provides structural strength, and forms the foundation of the sound insulation system.

Single-sided perforated panel (inner layer): Facing the sound source, its holes allow sound waves to penetrate inward while preventing the shedding of rock wool fibers.

Rock wool core material: A porous inorganic fiber material that converts sound energy into heat energy for dissipation. It integrates fireproof and thermal insulation performance. Combined with steel panels, it forms a resonance suppression system to enhance the low-frequency sound insulation effect.

Rock wool/glass wool sandwich panels are a new type of fireproof building material made by bonding high-quality rock wool/glass wool to the metal panels with two layers of high-quality color- coated steel plates or other metal plates using a high-strength adhesive. They possess excellent fire resistance, thermal insulation, and sound absorption properties, making them an ideal choice for industrial buildings.

Acoustic Barrier

Equipment Acoustic Treatment

 Highway Noise Barriers

Metal carved panels

Acoustic Workshop

Polyurethane rock wool sandwich panels

Location: Montreal, Canada

Construction Type: Residential Building

Completion Target: Background Noise

Daytime ≤50dB(A), Nighttime ≤40dB(A)

Construction Period: 30 days

Construction Date: September 2014

Air Conditioning Unit Noise Control & Abatement

PROJECT   CASE

Location: Melbourne, Australia

Completion Target: Background Noise

Daytime ≤70dB(A), Nighttime ≤65dB(A)

Construction Period: 30 days

Construction Time: August 2019

Large wind turbine noise reduction project

 Location: Yanqi Lake, Huairou District, Beijing

Project Owner: Beijing Enterprises Holdings

Compliance Standard: Background Noise 

 Daytime ≤50 dB(A)

Nighttime ≤40 dB(A)

Construction Period: 30 working days

 Construction Schedule: September 2014

APEC Convention Center Air Conditioning Unit Noise Control & Abatement

Location: Xinji City, Shijiazhuang

Project Owner: Aosen Iron and Steel Group

Compliance Standard: Background Noise

Daytime Noise Limit: ≤70 dB(A)

Nighttime Noise Limit: ≤60 dB(A)

Construction Period: 130 working days

Construction Schedule: August 2020

Aosen Iron and Steel Co., Ltd. Environmental Noise Treatment

Location: Xisanqi, Beijing

Construction Unit: Air Force Equipment Research Institute

Completion Target: Background Noise

Daytime ≤55dB(A), Nighttime ≤45dB(A)

Construction Period: 30 days

Construction Time: July 2013

Air Force Equipment Research Institute Cooling Tower Noise Reduction Project

Location: 3rd Floor, Simulation Building, China Electric Power Research Institute, Beijing

Construction Party: China Electric Power Research Institute

Area: 60m2

Completion Target: Background Noise NR-45

Construction Period: 30 days

Construction Dates: February 2019

Noise Reduction Project for Data Center of China Electric Power Research Institute

As acoustic engineers, we combine precision engineering with innovative design to deliver tailored noise control and sound optimization solutions. We ensure exceptional acoustic performance, creating quieter, safer, and more comfortable spaces that elevate your projects to professional excellence.

One video shows our professionalism & focus