... . Several material f or Oil Seal, O-Ring and rubber gasket like: NBR, HNBR, CR, PDFE, EPDM, SILICONE, VITONE, etc. Can choose on ... can make on your size. 5. Optional color for you of the Oil Seal, O-Ring and rubber gasket: Black, red, yellow, brown ... . Your OEM order of Oil Seal or O-Ring, rubber gasket is welcomed as well. 7. Apply for: Auto, air condition, machinery, water ...