Propeller Precision casting and machining Premium quality, best price, on-time delivery ISO9001:2000 OEM/ODM services PropellerOEM non- ... centers, CNC lathes, precision casting equipment, gear planers, 3D Inspection...Process: precision casting, investment casting, die casting, gravity casting, sand casting, forging, CNC precision machining ... are fully appreciated. Propeller of cast steel(OEM service)