... impeller Tolerance +/-0.01mm 1) Supply OEM/ODM service 2) Supply machining service 3)Big capacity 500ton/month Pump ... carbon steel, stainless steel, aluminum, bronze, brass, zinc alloy etc.2) Standard: AISI, ASTM, JIS, BS, DIN, ISO3) Weight ... line cutter etc.6) Testing equipment (foundry used): elongation tester, hardness tester, metallographic microscope, spectrometer, PC thermometer, CE NSP-550CS heat ...