fire exit door mas malapit, fire exit door push, fire exit door lever trim

Ang steel fire door ay binubuo ng steel frame at steel door leaf. Ang istraktura ng bakal ay maaaring matiyak na ito ay hindi madaling kapitan sa epekto ng pagpapapangit at panlabas na pinsala sa puwersa, at maaaring gamitin nang normal sa mahabang panahon nang walang kapalit.

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