... JIS,BS;ISO:NF Butterfly valve body and disc CastingsCast iron and cast steel,aluminium and bronze castingMaterial:Cast steel,ductile iron,grey ... parts, valves parts, pump parts, vehicle parts, marine parts and other machinery parts, materials are as follows: ItemDescriptionMaterialTechnical Process1Ductile ... 82530406-16Fax: 86 411 82530206Skype: xuekui87 Butterfly valve body and disc castings