Fire doors are made of high-quality galvanized stainless steel plates, which are then produced step by step. When the fire door is produced and molded, it will have a good effect of fire prevention and smoke separation, and meet the requirements of fire resistance stability, integrity and heat insulation.

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.