The stress cone is made of imported EPDM. The surface pressure between the stress cone and the epoxy bushing is maintained by the spring device(stress cone bracket) so that the press of interface is kept permanently during the course of running. This structure can overcome the disadvantage or defect from material aging.
The termination is whole dry type , no oil, eliminate the problem of leakage.
Compact, light, weight, and small volume , Easy to install.