When making customized fire doors, fire rating requirements should also be installed according to the actual situation. The fire protection rating is relatively high, and the price may also be relatively high. Fire doors are classified into three specifications, namely, Party A, Party B and Party C, with outstanding sound insulation and heat insulation performance.

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.