The steel fireproof door is a door made of steel materials. The door leaf is filled with environment-friendly flame retardant and thermal insulation materials that are harmless to human body, and the door is composed of fireproof hardware fittings. In addition, the junction of the door leaf and the door frame and the periphery of the fireproof glass are sealed with fireproof sealing treatment, which greatly increases the fire resistance of the fireproof door.

ZHTdoors防火门，31年防火门窗生产经验。 主营UL防火门、EN防火门、BS EN防火门等。我们有认证。ZHTdoors支持OEM和免费设计。我们的优势：质量好，出厂价，服务好。欢迎咨询。