... and size are accept. 3. TS16949,NSF,ACS,WRC,FDA ,UL oil seal can work in the high temperature .it has ... : GM, FORD ,North -Benz,Certification: TS16949 ,NSF ,ACS .WRC ,FDA ,UL ,KTW,W270, ROHS, SGS ,ISO9002:2009, .Export Ratio: 51% - 60 ... , Aging Test, Thickness Meter, Shore-A Hardness Tester, Optical Projector mechanical tb oil seal