... and machining Premium quality, best price, on-time delivery ISO9001:2000 OEM/ODM services PropellerOEM ... boxes, impellers, pumps, valves, flanges, joints...Material: cast iron, cast steel, alloy, alloy steel, alluminium, copper, brass, harden metal ...Equipment: ... planers, 3D Inspection...Process: precision casting, investment casting, die casting, gravity casting, sand casting, forging, CNC precision ...