Detailed Product Description Material:ZrO2, Si3N4, SiC, Al2O3, POM, PEEK, PTFE Type: 6000 series, 6200 series, 6300 series, 6700 series, 6800 series, 6900 series,R series, UC series, self aligning series, Angle contacted series, Full typeseries, most types could be add non-contact seal according to demand.