... parts products like O rings, rubber seals, rubber band, oil seal,water seal and rubber gaskets etc.Specifications 1. Viton ... , TS16949, NSF, WRAS, UL, TZW, W270, ACS, FDAMaterial100% pure silicone Material usage is based on the final product condition.Packing ... standard packing: follow customers' requirementVarious colors & sizes for your reference. Long service life silicone tube used for auto part