The fire door only needs to be opened gently, and then it will be closed silently and automatically. It is not easy to have the sound of impact, and then build a peaceful natural environment; When the fire door is opened, only 1KG force is needed, and the opening tension is less than 50N. Even people sitting in wheelchairs can open it easily.

ZHTdoors menyako ea mollo, lilemo tse 31 tsa boiphihlelo ba tlhahiso menyakong ea mollo le Windows. Menyako e ka sehloohong ea mollo oa UL, mamati a mollo oa EN, mamati a mollo a BS EN, joalo-joalo,.Re na le setifikeiti.ZHTdoors tšehetso OEM le mahala moralo.Melemo ea rona: boleng bo botle, theko ea fektheri, tšebeletso e ntle.Rea u amohela ho buisana le rona.