... ISO9011 rubber joint description:1.used in air,water,oil,acid,2.have shock absorption3.easy ... key projects of chemical industry,building industry,water supply,drainage,petroleum,light and heavy industries, ... refrigeration,health,water heating,fire control,power,etc. Rubber joint ... to -30-250DApplicable mediaAir. Compressed air,water,sea water,hot water,weak acid,etc.