The materials include SS 201, 202, 303, 304, 304L, 316, 316L, 1Cr18Ni9Ti, 430, 440, 1008, 1020, 20NiCrMo, 42CrMo4.We can make precision foundry products from stainless steel, carbonic steel, alloy steel, non-ferrous steel, etc. This Impeller is MFG...