The hardware fittings used on UL fire doors must also be fire-resistant. Fire doors can be opened and closed freely by hinges. The door closer can ensure that the door can be closed to the initial position accurately and timely after being opened. After installing the aligner, the rear door leaf can be closed tightly one after the other. The important part of the fire door is the escape device. In an emergency, indoor personnel can immediately escape by pushing the escape device.

የ ZHTdoors የእሳት በሮች, በእሳት በሮች እና በዊንዶውስ ውስጥ የ 31 ዓመታት የምርት ልምድ. ዋናው የ UL የእሳት በሮች ፣ EN የእሳት በሮች ፣ BS EN የእሳት በሮች ፣ ወዘተ., የምስክር ወረቀት አለን ZHTdoors ድጋፍ የኦሪጂናል ዕቃ አምራች እና ነፃ ንድፍ.የእኛ ጥቅሞች: ጥሩ ጥራት, የፋብሪካ ዋጋ, ጥሩ አገልግሎት.እኛን ለማነጋገር እንኳን ደህና መጡ.