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Liu Zong is excellent
Please ask, can each vent be made so long without reinforcement? Is there any risk of deformation?
Good job!
Is it useful for viruses
For office use
Laboratory, banking and finance, medical system, schools, nursing homes, museums, archives, libraries, restaurants and other places with high population density.
This is dirty, isn't it easy to clean?
I wonder why there is a flat head in the left curved air outlet?