220V Stainless Steel Electric Damper Electric Air Valve Motorized Check Valve For 4Inch Pipe 100Mm 4851514171269

220V Stainless Steel Electric Damper Electric Air Valve Motorized Check Valve For 4Inch Pipe 100Mm 4851514171269

Spactz

1. It is a volume controller installed in the air duct of air-conditioning and ventilation systems. 2. The open degree of blades is controlled by...

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