... of resistance of /oil/ heat/acid and alkali, high voltage ,long-range elasticityRubber flexible joints, also known as rubber expansion joints ... /oil/ heat/acid and alkali, high voltage (1.0-6.4MPa),long-range elasticity, air impermeability, medium, climate and radiation resistance , vibration ... material and technical parameters:Working press Mpa:1.0.1.6.2.0.2.5MPA,etc.Applicable temp.-15-+ 115, ...