alumina ceramic shafts for 20/30/90W water pump1.wear-resistant 2.anti-high temperature 3. ... seals good 4.anti-corros alumina ceramic shafts for water pumpOD10*80.5,OD10*99,OD14*154,OD14*174Our ... plunger pump, ceramic rod, ceramic shaft, ceramic piston, ceramic water valve sheet, ceramic pipe sleeve, ceramic loom plunger, ceramic seal ring ... .005 alumina ceramic shafts for 20/30/90W water pump