Supply & Install EI Fire-rated Ductworks System

Fireproof ducts have the same basic structure as normal duct systems like other duct systems, but they have been treated with layers of fireproof insulating material on the surface of the ductwork. This layer of material helps the duct to be able to withstand the impact of fire for a certain period of time. EI ductwork structure: Layer 1: Galvanized corrugated iron layer; minimum … Xem thêm >>