In fact, steel and wood fire doors use the combination of steel and wood. This material is relatively stable, and it is lighter than steel fire doors. Generally, this material is chosen in many household processes, and the price is relatively favorable.

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.