... ,2008TUV/NORD 4.material is PTFE/ACM; PTFE/VITON oil seals 1.oil seals for automobile ,motorcycle,agricultural machinery,trucks,heavy equipment ... 500 mm. 4.specialized in design and manufacture all the oil seal, PTFE seal. ISO9001,2008 TUV/NORD 5.temperature range -40-+120 ... ,DAEWOO,VW,MAN,BENZ,KIA,FIAT,RENAULT,ISUZU,SUZUKI,PERKINS,CUMMINS,KOMATSU,CATERPILLAR,ETC. 7. OEM service or design service ...