Name: Jingyi Feng (jingyifeng971). Áudio original criado por Jingyi Feng. Manual butterfly valve features easy opening and closing, excellent sealing performance, suitable for regulating and cutting off pipeline media. #Manualbutterflyvalve #Ventilationbutterflyvalve #Manualventilationdamper
Uploaded: 2026-05-16T08:01:18Z
Duration: 19 s
Description: Manual butterfly valve features easy opening and closing, excellent sealing performance, suitable for regulating and cutting off pipeline media. #Manualbutterflyvalve #Ventilationbutterflyvalve #Manualventilationdamper

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Jingyi Feng

Manual butterfly valve features easy opening and closing, excellent sealing performance, suitable for regulating and cutting off pipeline media. #Manualbutterflyvalve #Ventilationbutterflyvalve #Manualventilationdamper More

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