详情描述

Technical specifications for fire-resistant doors

Fire-resistant doors are available in steel, glass, stainless steel, and wooden types, categorized into Class A, Class B, and Class C.

The interior filling material of fire-resistant doors is non-combustible or flame-retardant lightweight fire-resistant profiles, commonly filled with perlite boards.

Fire door leaf steel plate thickness is not less than 0.8mm, frame steel plate thickness is not less than 1.2mm, with specific thickness depending on the fire door grade.

Fire doors must pass inspection by the "National Supervision and Inspection Center for Fixed Fire Extinguishing Systems and Fire-Resistant Components."