Name: Feng Jingyi (fengjingyi). Áudio original criado por Feng Jingyi. The ventilation butterfly valve is a non-sealing type butterfly valve, which is applied in ventilation and environmental protection projects in industries such as chemical engineering, building materials, power stations, and glass manufacturing.
Uploaded: 2026-01-19T06:35:55Z
Duration: 16 s
Description: The ventilation butterfly valve is a non-sealing type butterfly valve, which is applied in ventilation and environmental protection projects in industries such as chemical engineering, building materials, power stations, and glass manufacturing.

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Feng Jingyi

The ventilation butterfly valve is a non-sealing type butterfly valve, which is applied in ventilation and environmental protection projects in industries such as chemical engineering, building materials, power stations, and glass manufacturing. المزيد

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