The fuse of fire shutter door is used with the matching device of fire shutter machine, which is used in the state of no one and power off when a fire occurs. When the surrounding environment reaches a certain temperature, the metal sheet is fused along with the temperature, so that the self weight of the fireproof rolling shutter door is reduced, which can isolate the smoke and fire spread.

ZHTdoors防火門，31年防火門窗生產經驗。 主營UL防火門、EN防火門、BS EN防火門等。我們有認證。ZHTdoors支持OEM和免費設計。我們的優勢：質量好，出廠價，服務好。歡迎諮詢。