... :NBR,CR,Vition,Silicone etc 3.Color:black, white,red, green, brown, etc 4.ozone resistant Seal ring1.Y seal ring 2 ... :NBR,CR,Vition,Silicone etc 3.Color:black, white,red, green, brown, etc 4.ozone resistant NameRubber Y Sealing RingSpecificationStandard or according ...