... 2.Materials:NBR,CR,Vition,Silicone etc 3.Color:black, white,red, green, brown, etc 4.ozone resistant Seal ring1.Y ... 2.Materials:NBR,CR,Vition,Silicone etc 3.Color:black, white,red, green, brown, etc 4.ozone resistant NameRubber Y Sealing ... abration resistance)Hardness NBR : HS75A° FR : HS80A° PUR: HS85A° Rubber with Fabric Insertion: HS95A° Working Temperature -40~120°C Working Pressure ...