... and flxible 4.ISO9011 rubber joint description:1.used in air,water,oil,acid,2.have shock absorption3.easy installment and flxible ... widely used in key projects of chemical industry,building industry,water supply,drainage,petroleum,light and heavy industries,refrigeration,health ... temp.-15-+ 115, Speciality reach to -30-250DApplicable mediaAir. Compressed air,water,sea water,hot water,weak acid,etc.