Lug Type Butterfly ValveHuachao Lug Type Butterfly Valve driven method can choose manual, worm ... seal, hard seal.Features:Size range: DN40-DN2000Material: cast steel, cast iron, stainless steelPressure: PN0.1-10 MpaHot tags: Lug Type Butterfly Valve ... , China manufacturer, factory, mill, supplier, cheapLug Concentric Butterfly ValveThe Lug Concentric Butterfly Valve is widely ...