- 26
- Oct
Fire Block Door
The fire resistance of steel fire doors is different. The fire resistance can be divided into three grades: A, B and C. Steel fire doors of different grades can be used in various places. The advantages of steel fire doors make them occupy a large market share in public buildings. It is widely used in hospitals, schools and shopping malls.
ZHTdoors yong’inga qarshi eshiklar, yong’in eshiklari va derazalarida 31 yillik ishlab chiqarish tajribasi. Asosiy UL yong’in eshiklari, EN yong’in eshiklari, BS EN yong’in eshiklari va boshqalar.