valve body for EMERSON cast steel or ductile iron CNC machining, powder coating, custom fabrication,OEM service Product ... ductile iron3. process: shell core casting, CNC machining, powder coating4. quality control: QC inspection, hydraulic test Certificationequipmentfeatures ISO9001 2008imported ... fabrication, OEM service NPT thread, Valve body, CNC maching parts, precision parts, custom fabrication