The excellent fireproof glass door is fired in a high temperature flame of more than 1000 degrees. After testing, it can be kept for 90 minutes or even longer. The public are concerned about the safety performance. The high-quality fireproof glass door glass is still in an obtuse angle after being broken, and the fragments are smaller than the tempered glass fragments.

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.