ZrO2: Usage:high precision,vacuum, high temp,low temp,electric insulation,high precision ballscrew set,valve balls for acid,alkali,salt,measure pumps,flowmeter and valve ball plunger for deep well pump. Characterisitic: resistance to strong acid,strong alkali,salt and gas of deleterious,long life,high hardness,especially resistance to wear,high modulus of elasticity ceramic material typical typesanti-corrosionspeed limitedmaxworking temploadcapacityringballscageSi3N4 Si3N4 PEEK/PTFE/PFA/ graphite reinforcing 1600 1800 6000 6200 6300 •••••••••260°C••••ZrO2 Si3N4 PEEK/PTFE/PFA/ graphite reinforcing 1600 1800 6000 6200 6300 ••••••••260°C••••ZrO2 ZrO2 PEEK/PTFE/PFA/ graphite reinforcing 1600 1800 6000 6200 6300 ••••••••260°C•••••ZrO2 SSiC PEEK/PTFE/PFA/ graphite reinforcing 1600 1800 6000 6200 6300 ••••••••260°C•••SSiC SSiC PEEK/PTFE/PFA/ graphite reinforcing 1600 1800 6000 6200 6300 ••••••••260°C•••