标准双滚珠轴承合页

产品特性

  • 适合需要标准合页的室内/室外门
  • 2个滚珠轴承
  • 304不锈钢材质
  • 不可上升轴芯设计,方便安装
  • 通过GB12955国家90分钟防火认证
标准双滚珠轴承合页
标准双滚珠轴承合页

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