In fact, fire doors are divided into many different materials, and different materials have different fire performance. When making customized fire doors, fire rating requirements should also be installed according to the actual situation. The fire protection rating is relatively high, and the price may also be relatively high.

ZHTdoors防火門，31年防火門窗生產經驗。 主營UL防火門、EN防火門、BS EN防火門等。我們有認證。ZHTdoors支持OEM和免費設計。我們的優勢：質量好，出廠價，服務好。歡迎諮詢。