... expansion joints,flexible flange rubber jointgood characteristics of resistance of /oil/ heat/acid and alkali, high voltage ,long- ... have excellent comprehensive performances ,like good characteristics of resistance of /oil/ heat/acid and alkali, high voltage (1.0- ... Compressed air,water,sea water,hot water,weak acid,etc. NO.Usage partMaterials1Main bodySpecial rubber2Enhance layerPolyester3FlangeA3, ...