flexible rubber joint 1,DN32-DN2000 2,easy installation and maintenance 3,free samples can be sent 4,ISO9001:2008certificte We are specialized flexiblerubber joint. Rubber expansion joint, is also known as shock absorber, pipe shock absorber, shock proof box and soft joint. It is a pipe joint of high-flexibility, high-gas tightness, resistance to medium and climate. Rubber Expansion Joint has ...