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瑞茂铜门的门体安装自主研发的高效保温节能复合门组件，内层具有一定厚度的阻燃保温板，内侧钢骨架加强筋保证门体稳定性，保温、抗击撞击、并且具有很好的密封性能；瑞茂铜门的门体特效密封条，将门体与门框之间的缝隙彻底密封，有效防止异味入侵和雨水倒灌。
