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1. 主要材质不锈钢,材料性能好和力学性能强
2. 满足国家B级防盗性能检测,防钻、防锯、防撬、防拉、防冲击、防技术开启,为住户提供高防护等级
3. 室内锁死功能,室内小旋钮控制反锁舌的上锁,安全系数增加
4. 适用于门厚35mm以上