... . 4. Certify to ISO9001:2008 and ISO/TS16949. High Quality & Low Price Tcm Oil Seal descriptions: Materialscan be NBR, SI, HNBR, SBR, FPM ... , WRAS, etc.QC/QAWe have experienced quality control and assurance system, 30 QC technicians.ApplicationsUsed in mechanical, automobile, electrical appliance, industrial, construction ...