UL fireproof door profiles include steel, wood, stainless steel, etc. Compared with other profile fire doors, the main structure of steel fire doors is more stable. The unique design and smooth lines highlight the overall aesthetic performance of the product, thus showing the characteristics of dignity and fashion.

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.