1. ROHS,ISO 2. NBR,EPDM,SR,CR,SBR,FPM etc. 3. UV,FR,oil/ageing/ozone/shock ... ring Quick supply 2. Different colors and sizes 3. Good quality, best price 4. Offer OEM O ... ' requirement Rubber O Ring Gasket1) Available material : NBR,SILICONE,VITON(FKM),Neoprene,HNBR,Natural rubber,EPDM.2) ... manufacturing processes confirm to the ISO9001,SGS,ROHS,FDA.3) Customer's design and specifications are accepted.4 ...