ductile iron wafer butterfly valve
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Small Ductile Iron Wafer Center Butterfly Valve
1. Ductile Iron Wafer Butterfly Valve use ductile iron material good casting performance, low cost, convenient production 2. The butterfly valve with replaceable seat more resistance to acid, alkali, water, superheated water, and water vapor; resistance to polar oil 3. The butterfly valve use the 2Cr13 for stem with good hardness, more wear-resistant
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