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建筑物通风. 住宅通风用组件/产品的性能试验. 第1部分: 外部和内部安装的气体转换设备
Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 1 : externally and internally mounted air transfer devices
参考页数：29P.;A4
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建筑物通风. 住宅通风用组件/产品的性能试验. 第1部分: 外部和内部安装的气体转换设备
Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 1 : externally and internally mounted air transfer devices
参考页数：29P.;A4
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无油往复活塞压缩机用填充聚四氟乙烯活塞环
参考页数：13
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