... alumina ceramic shafts for 20/30/90W water pump1.wear-resistant 2.anti-high temperature ... good 4.anti-corros alumina ceramic shafts for water pumpOD10*80.5,OD10*99,OD14*154,OD14 ... pump, ceramic rod, ceramic shaft, ceramic piston, ceramic water valve sheet, ceramic pipe sleeve, ceramic loom plunger, ... volume from 0.5 ml to 500 ml.Madical care, Hemodialysis machines, Proportion pump, UF pumpAll kinds ...