“Fire door” is an important part of fire fighting equipment, which can prevent fire spread and smoke diffusion and ensure personnel evacuation in case of fire. Fire door refers to the door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time.

Deriyên agir ZHTdoors, 31 sal ezmûna hilberînê di deriyê agir û pencereyan de. Deriyên agir ên sereke yên UL, deriyên agir EN, deriyên agir BS EN, hwd.. Em xwedî sertîfîkayê ne.