... ,ozone-resistan 4. Color: Black, red, green, etc Auto part oil seal: 1.Material: NBR,HNBR,PTEE,FPM,MVQ,EPDM ... on2.Application: trains,automobile,motocycles,trucks,buses,agricutural machinery and any equipments3.Certification: GB/T19001-2000-ISO9001: 2000 standard4.Production ... Control:prouduced by priecise CNC machine5.Strong point: we have our own mold center, ...