flange rubber joint 1.flexible 2.strong shock absorption 3.ISO 9011 4.years experience of flange rubber joint flexible flange Rubber Joint 1.flexible2.strong shock absorption3.ISO 90114.years experience of flange rubber joint flexible rubber for expansion joints,flexible flange rubber jointgood characteristics of resistance of /oil/ heat/acid and alkali, high voltage ,long-range elasticityRubber ...