Whatsapp:0086 136 024 963 76

        BUSINESS INFORMATION

        Fire-proof door sequencer product introduction

          The function of the fire-proof door sequencer is to close one door first, and then close the other door after a few seconds, so that the door can be closed smoothly, so that the fire door can play the role of fire prevention and partition. Fire protection requirements. With reference to the RDA-29L sequencer of Lelang Hardware, it is made of stainless steel 304, and its anti-corrosion, anti-rust and durable characteristics are deeply loved by consumers.


        fire-proof door sequencer

        fire-proof door sequencer

        fire-proof door sequencer

        fire-proof door sequencer

        fire-proof door sequencer

        Previous: No Information!

        Copyright ? 2018 Guangzhou Reliance Hardware Co., Ltd All Rights Reserved.

        Technical Support:LIYANG  

        视频二区视频一区欧美国产,国产成人综合激情久久,亚洲天堂AV女优一区,黄色网站日本视频一区