UL Fireproof Doors B&Q

The thickness of UL steel fireproof door leaf is divided into three standards, namely, A, B and C, with excellent sound insulation and heat insulation performance. The surface of UL steel fireproof door is treated by electrostatic spraying, and the vulnerable parts such as hinges, door locks, door closers are high-quality products. The switch is light and durable.

ZHTdoors 防火扉、防火扉および Windows での 31 年の生産経験。 主な UL 防火扉、EN 防火扉、BS EN 防火扉など。私たちは認定を受けています。ZHTdoors は OEM と無料のデザインをサポートしています。私たちの利点: 良質、工場価格、優れたサービス。

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