... -rings 1.material: NBR,VITON,SILICON,NR ... 2,different size 3.samples for free Detailed Product Description Material: NBR, silicon rubber, fluorin rubber ... pressure oil, lube, air, water. Details of Hydraulic Rubber O-Ring :1. O-rings is the simplest parts in the field of ... pictures for your reference: If you have interest in our rubber O-rings, please feel free to contact with me.Welcome to ...