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Type: Open vortex, no blockage Trademark name: Equipment manufacturer Origin: China Product name: Custom turbine impeller Material: Stainless steel, steel Heat treatment: Quenching, tempering, annealing and normalizing Process: NC machining, milling, drilling and tapping Rough: Ra 3.2-Ra12.5 (GB/T 6060.1) Surface treatment: Coating, electroplating, electropolishing and mirror polishing Technology: Lost wax casting, investment casting