... valves,ball valves,butterfly valves,diaphragm valves,mud valve ect.And it has complete inspection equipment, such ... With 3D Eccentric structure ,the sealing ring of valve body adopts a multi-level structure of flexible ... ±570°Calloy steel4) Suitable medium: water, oil, gas,vapor,steam etc.5) Body and disc material: WCB, CF3, ... your confirmation before after place order. wafer type butterfly valve