Rubber ring gasket for PVC pipes EPDM rubber ISO9001 and ISO14001 MOQ 1000 pieces Price $0.1-1.5/p Rubber ring gaskets ... rolling mill, reinforced oil seals with fabric, large dust proof gasket.materials: nr, nbr,acm,epdm,ptfe,silicon,neoprene,viton,etc ... D395Method B20%11% 19%Ozone Resistance 25hrs / 50 pphm Ozone / 40°CASTM D1149No CracksNo CracksOxygen Bomb (96 hrs. in Oxygen @ 70 ...