The difference between glass fire doors and wood and steel fire doors is that it is inlaid with a large area of fireproof glass. After high temperature, the transparent jelly-like fireproof glue layer in the middle of the glass will quickly harden to form an opaque fireproof insulation board. High strength is also one of the advantages of fireproof glass, the strength can reach 6-12 times that of ordinary glass; 2-3 times that of tempered glass.

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