haoyunz5156
2009- 9- 5, 07:56 AM
Rubber expansion joint (http://www.corrosion-resistant-valves.com/rubber-expansion-joint.html) is an assembly designed to safely absorb the heat-induced expansion and contraction of various construction materials, to absorb vibration, or to allow movement due to ground settlement or earthquakes.They are commonly found between sections of sidewalks,bridges,railway tracks,piping systems,and other structures.