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Ventilation piping accessories

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New air flow adjustment valve regulator

Dual blade patented design, compared to single blade, provides more stable airflow, reduces noise, and lowers wind loss.Gear shaft design, not easy to loosen, maintains fixed air flow

Product Description

Dual blade patented design, compared to single blade, provides more stable airflow, reduces noise, and lowers wind loss.Gear shaft design, not easy to loosen, maintains fixed air flow

New air flow adjustment valve regulator

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