... combined seal ringCertificateISO9001:2000Country of OriginChinaAdvantageA. Ozone and chemical resistanceB. High temperature resistanceC. Excellent weather resistanceD. ... machinery, water pumps, valves, etcPackingInner packing is by plastic bag outer packing is by carton and woodenPayment termT/ ... ,Rubber Oil Seal, O-Ring, Rubber Seal, Rubber Gasket, Rubber Ring, Sealing Ring, Sealing Gasket. Ren County ...