The H9B series frame is used in ASHRAE built-up filter Banks with press-fit fasteners to facilitate the rapid replacement of air filters.
H 9 B系列框架使用在ASHRAE内置过滤器的压接紧固件中，促进空气过滤器的快速更换。
The H9B series frame is used in ASHRAE built-up filter Banks with press-fit fasteners to facilitate the rapid replacement of air filters.
H 9 B系列框架使用在ASHRAE内置过滤器的压接紧固件中，促进空气过滤器的快速更换。
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