... 4.Samples free Seal Washer :1. Material: NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, etc. Can choose on your requirement; ... , KB, KA, DC, DB etc, 3.We also can make on your demand; 4. Different sizes of Oil Seal ... ,Rubber Oil Seal,Rubber Seal, also can make on your size.5.Optional color for you ... :Black, red, yellow, brown, white, green, violet etc, can make it on your order;6. Your OEM order of ...