dowty seals, bonded seals, o rings, oil seals, backup rings,,etc. we have the more different type and sizes, we are very strong in rubber sealing products, likes dowty seals, bonded seals, o rings, oil seals, backup rings, rod seals, piston seals,copper washer,,,in different type and sizes most hydraulic cylinder sealing components .For new items, also can do produce it according your drawings, ...