The steel fireproof door has strong fire resistance, moderate price, high sound insulation, and durability. The stainless steel plate used for the steel fire door has better corrosion resistance and is durable. The door body can be made of a mold, and has the effect of anti-theft.

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.