Rubber Compensator Structure: Rubber compensator is also called rubber expansion joint, which is generally made of waveform rubber compensation parts and metal flanges. Loose sleeve structure is used for the flange and the rubber compensation part is composed of rubber surface and the inner layer made of strong fiber or steel strip or steel wire. The reinforced fibers or steel strip t/Compensator/Rubber_Compensator.html#sthash.9RmyieEz.dpuf wooden case