... : RubberPlace of Origin: Fujian China (Mainland)Brand Name: TongheModel Number: QL-ORItem: rubber seal o ringMaterial: Silicone,NBR,EPDM,FKM ... ,NR PU,CR etcSize: at your requestDuro: 50-80Color: any colorTechnique ... main products.Our common materials include NBR, silicon, Viton, EPDM, NR, PU, and such as neoprene, HNBR, SBR, BR, butyl ...