UL闭门器具有全球流行款式。凸轮机构，隐藏式闭门器，双开门。适用于各种防火门，木门最小厚度为44mm
UL闭门器具有全球流行款式。凸轮机构，隐藏式闭门器，双开门。适用于各种防火门，木门最小厚度为44mm
认证
UL 10C 防火等级 3 小时
美国国家标准学会
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联系我们：
大卫·江
电话 / whatsapp /微信：+86 - 13929037292
电子邮件：sales@danddhardware.com
电话：+86-750-3856396
传真： +86-750-3856395
地址：中国广东的江吉安山区，江江区的Kechuang技术区2号建筑物，第898号，中国529000
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