UL wood fire doors are made of fire-resistant wood, and the filling materials are non-toxic and environment-friendly fire insulation materials, which not only reduce production costs, but also achieve energy conservation and environmental protection. Fireproof doors made of such woods as rosewood, walnut and oak have excellent performance and high price.

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.