UL 認證防火門

UL fireproof door profiles can be made of steel, wood or stainless steel. Among them, UL steel fire doors are exquisite in workmanship and use high-quality materials, thus improving the stability and scientific performance in the use process. It has been recognized by many users.

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。

UL 認證防火門-ZTFIRE門-防火門,防火門,防火門,防火門,鋼門,金屬門,出口門