... fabrication,OEM service Product description1. product name: npt thread Valve body, cnc parts2. material: cast steel or ductile ... shell core casting, CNC machining, powder coating4. quality control: QC inspection, hydraulic test Certificationequipmentfeatures ISO9001 2008imported HASS 4 ... etc.custom fabrication, OEM service NPT thread, Valve body, CNC maching parts, precision parts, custom fabrication ...