... , SILICONE, VITONE, etc. Can choose on your requirement; 2. Many types of oil seal: TC, TB, TA, SC, SB, SA, VC, VB ... can make on your demand; 3. Many types of O-Ring: O-type, E-type, U-type, V-type and so on, can make on your ... type. 4. Different sizes of Oil Seal, also can make ...