... ,NBR... 3.ISO9001: 2008 4.OEM/ODM are welcomed 1.Gear oil seal2.Material: NBR,HNBR,PTEE,FPM,MVQ,EPDM,PTFE ... by priecise CNC machine6.Strong point: we have our own mold center, can develop most kinds of high tech requireds.7 ... all of oil seals, gaskedts,o-rings ,and so on. Gear oil seal