1.Ductile iron resilient gate valve. 2.Face To Face dimension is according BS5150 3.Face to Face dimensions Conform to BS5163 GGG50 ductile iron resilient gate valve I) DESCRIPTION: This type of valves is widely used in industries such as water source project, urban water supply and drainage, sewage treament, electric power, petroleum, petrochemical, heat supply, ship building, mechine and ...