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The magnesium rock plate with a steel face is made up of a fire-resistant magnesium plate and a metal plate that can resist corrosion. The material used is A1, which is a non-combustible material and meets the fire safety requirements. The air duct has its own insulation layer that can withstand high temperatures, so there is no need for an additional coating.
Commercial kitchen grease ducts
Air ventilation systems
Hazardous chemical exhausts