Main metal wetted parts are Impeller, Volute, Throat Bush, Frame Plate Liner Insert , Expeller, Expeller Ring... and they are made of high chrome alloy, 27%, SA05,anti-wear, anti-abrasive , ASTM 532,Class III, Type A and long service-life, allowable PH 5-12. According to the different requirement from clients, there are optional materials: SA033, ...

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