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保温
瑞茂铜门 高效保温节能
经国家建筑材料检测中心检验，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、并且具有良好的密封性能和隔音效果。
