... hardness 3. high wear resistance Silicon Carbide Ceramic Sleeve for Pumps, sic pump sleeve, ceramic sleeve 1. why ceramics? * ... bushing bearings for strong acid, strong alkali, salt, measure pumps, flowmeter and deep well pump; bushing bearings for nonmagnetic, ... plunger pump, ceramic rod, ceramic shaft, ceramic piston, ceramic water valve sheet, ceramic pipe sleeve, ceramic loom plunger, ceramic seal ...