ASTM F820-2021Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems ASTM F820-2021Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems

ASTM F820-2021Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems

  • 标准类别:
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  • 标准编号:ASTM F820-2021
  • 标准状态:现行
  • 更新时间:2023-04-18
  • 下载次数:
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