1. Cast iron valve body 2. material: ductile GGG45 or grey iron GG25. 3. DN50 to DN1400. Product nameCast iron valve bodyMaterialDuctile iron GGG45,grey iron GG25 or equivalent other materialSizeDN50-DN1400StandardAISI,ASTM,JIS,BS,DIN,ISOUnite weightup to 500kgsProcessIron casting+complete machining+painting cast iron valve body