Fire doors can be divided into normally closed fire doors and normally open fire doors according to the opening state. Normally closed fire doors are usually closed under the action of door closers. Therefore, it can prevent smoke from spreading in case of fire; Normally open fire doors are usually opened under the action of door closers. In case of fire, the automatic release switch is automatic, and the fire door closers are closed under the action of door closers and aligners.

Протупожарна врата ЗХТдоорс, 31 година искуства у производњи противпожарних врата и прозора. Главна УЛ противпожарна врата, ЕН противпожарна врата, БС ЕН противпожарна врата, итд., Имамо сертификат. ЗХТдоорс подржавају ОЕМ и бесплатан дизајн. Наше предности: добар квалитет, фабричка цена, добра услуга. Добро дошли да нас консултујете.