Fire Rated Smoke Exhaust Duct Series
Fire Rated Smoke Exhaust Duct Series
GB Duct, authoritative expert in fire & smoke exhaust duct systems, specializes in magnesium oxide and polymer composite duct boards, supporting full non-standard tailor-made customization.
![WW-W2 Polymer Fire Smoke Exhaust Duct Board | A1 Non-Combustible | 120min Fire Resistance]( "WW-W2 Polymer Fire Smoke Exhaust Duct Board | A1 Non-Combustible | 120min Fire Resistance")
WW-W2 Polymer Fire Smoke Exhaust Duct Board | A1 Non-Combustible | 120min Fire ResistanceWW-W2 polymer fire smoke exhaust duct board is an advanced composite duct panel engineered for high-demand fire protection and smoke management systems. It features a robust sandwich structure consisting of double-sided embossed coated steel sheets bonded to a new generation microporous polymer core.
This innovative construction delivers exceptional rigidity, impact resistance, corrosion protection, weather durability, and superior sound insulation properties. With a class A1 non-combustible rating and 120-minute fire resistance, WW-W2 is specifically designed for manufacturing fire-rated smoke exhaust ducts and can also be used as a standalone fire protection board.Learn More >>![MGO Duct Board | A1 Fire Rated Magnesium Oxide Ductwork for Smoke Extraction Systems]( "MGO Duct Board | A1 Fire Rated Magnesium Oxide Ductwork for Smoke Extraction Systems")
MGO Duct Board | A1 Fire Rated Magnesium Oxide Ductwork for Smoke Extraction SystemsNon-combustible, corrosion-resistant, and pre-insulated duct panels that meet EN 13501-1 A1, UL 94 V-0, and ASTM E84 standards. Eliminates fire hazards and ensures one-pass fire inspection for commercial and industrial buildings.
✅ A1 Class Non-Combustible
Withstands 1200℃ high temperature, no burning and no toxic smoke emission.
✅ Zero Corrosion
20-year acid, alkali and salt spray resistance, replacing galvanized steel to completely solve rust problems.
✅ Fast Installation
Prefabricated modular system, installation speed 3 times faster than traditional ductwork.Learn More >>
GB Ductwork System Key Components
The GB Duct System is a globally leading, innovative solution for fire and smoke exhaust ductwork. Boasting easy installation and minimal maintenance, it sets a new benchmark in fire & smoke ventilation technology.
Beyond premium MgO fire-rated duct panels, GB provides a complete one-stop system: precision accessories, specialized machinery, custom tools and professional technical support — ensuring perfect fabrication and hassle-free installation.
• 1 pc Left 45° Cutter
• 1 pc Right 45° Cutter
• 1 pc 90° Straight Cutter
• 1 pc 45° Edge Side Cutter
• 2 pcs Tape Measure
• 1 pc 3mm Hex Wrench
• 1 pc 5mm Hex Wrench
• 1 pc Anti-rebound Rubber Hammer
• 50 pcs Spare Replacement Blades
• 2 pcs Plastic Scraper
• 1 pc Utility Knife
• 2 pcs Marking Pen
• 1 pc Adjustable Tape Marker
Why Choose Us
GB DUCT | HVAC & Fire Smoke Exhaust Duct Specialist, Since 1984
Rich Industry Experience
With over 40 years of experience in the HVAC industry, we have completed more than 10,000 projects worldwide.
Strong Production Capacity
We own 10 modern automatic production lines with an annual output capacity of 300,000 square meters, guaranteeing stable quality and on-time delivery even for bulk orders.
Professional Technical Team
Our experienced engineering team provides one-stop customized solutions and full-process professional technical support for all your project demands.
Competitive Factory Price
As a direct manufacturer without middlemen markup, we offer genuine factory direct prices, helping you save up to 20% cost compared with trading companies.
Comprehensive After-sales Service
We provide complete after-sales support, including on-site installation guidance, professional technical training and efficient problem solving anytime.
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