... :2008, and ISO 14001:2004.JINGANG structure ceramic includes Al2O3, ZrO2,SiC, Si3N4 material . These advanced ceramic are applicated in sealing material , mechanical ... . corrosion resistance4. oxidation resistance JINGANG structure ceramic includes Al2O3, ZrO2,SiC, Si3N4 material .Specification Zirconia ceramic are applicated as shaft bearing ,plunger,sealing ...