Feature: 
 
Fire resistance rating is Grade A(non-ignitable), it has virtues such as heat preservation, acid and alkali-resistant, pressurization, ageing-resistant , noise elimination, anti-sweat, etc. It is suitable for central air-conditioning unit, fan-coil terminal air outlet, etc.

 The pressurization of this ventilation duct: ≤2000pa, the thickness of heat insulation cotton: 20mm, applicable mediator: cold or hot air, harmful, toxic and corrosive gas, etc. The size and specification can be customized.
 our company website: www.fireproof-material.com