The steel fireproof door leaf is filled with materials, which are fire insulation materials harmless to human body. The utility model relates to a door with a certain fire resistance, which is composed of fireproof hardware fittings. The advantages of steel fire doors make them occupy a large market share in public buildings.

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.