Silicone rubber o ring 1.Material Silicone 2.Good tensility,wearing 3.ROHS,ISO9001,14001 4.Type: ... ,X ring,V ring,U ring Silicone Rubber o ring 1. Main materialSilicone rubber, also can use Natural rubber, SBR, NBR, IIR, PU, EPDM ... of Silicone8. Color and shapecan be changed upon request. In various sizes and colors are available.9. Export areaJapan,France,Canada ...