... , CF8M, CF3, CF3M3) Industry involved:Impellers for aero industryCentrifugal tubes with OD670/L=4.5m/W=1.5tons4) Part unit weight ... Machining/Grinding/Milling/Drilling/Welding machine,etc.SurfaceGrind/shot-blast/mirror polishing/Zinc plate/Chrome plate/powder coatInspectionMicrocalliper,Spectral analysis,Hardness ...