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Anonymous users2024-01-241. Are you talking about draining and exhausting, this is originally a pipe.
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The exhaust duct has two airways, one is the main airway and the other is the bronchi. >>>More
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It is not recommended, there is a possibility of cross-flavoring. Or add a deflector to prevent the airflow from backing up.
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Small words may be blocked. It is still recommended to be larger.
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It is best to take the spacing in the pipe of the H-through pipe fittings as the standard.